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<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,602.4</td><td></td><td></td><td>$</td><td>300.6</td><td></td><td></td><td>$</td><td>434.3</td><td></td><td></td><td>$</td><td>422.3</td><td></td><td></td><td>$</td><td>326.4</td><td></td><td></td><td>$</td><td>174.6</td><td></td><td></td><td>$</td><td>209.5</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>46.9</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.2</td><td></td><td></td><td>0.9</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.1</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2024</td><td></td><td>$</td><td>3,649.3</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>434.5</td><td></td><td></td><td>$</td><td>423.2</td><td></td><td></td><td>$</td><td>326.5</td><td></td><td></td><td>$</td><td>175.7</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr></table>
table
423.2
monetaryItemType
table: <entity> 423.2 </entity> <entity type> monetaryItemType </entity type> <context> Total as of December 31, 2024 | $ | 3,649.3 | $ | 302.7 | $ | 434.5 | $ | 423.2 | $ | 326.5 | $ | 175.7 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,602.4</td><td></td><td></td><td>$</td><td>300.6</td><td></td><td></td><td>$</td><td>434.3</td><td></td><td></td><td>$</td><td>422.3</td><td></td><td></td><td>$</td><td>326.4</td><td></td><td></td><td>$</td><td>174.6</td><td></td><td></td><td>$</td><td>209.5</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>46.9</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.2</td><td></td><td></td><td>0.9</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.1</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2024</td><td></td><td>$</td><td>3,649.3</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>434.5</td><td></td><td></td><td>$</td><td>423.2</td><td></td><td></td><td>$</td><td>326.5</td><td></td><td></td><td>$</td><td>175.7</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr></table>
table
326.5
monetaryItemType
table: <entity> 326.5 </entity> <entity type> monetaryItemType </entity type> <context> Total as of December 31, 2024 | $ | 3,649.3 | $ | 302.7 | $ | 434.5 | $ | 423.2 | $ | 326.5 | $ | 175.7 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,602.4</td><td></td><td></td><td>$</td><td>300.6</td><td></td><td></td><td>$</td><td>434.3</td><td></td><td></td><td>$</td><td>422.3</td><td></td><td></td><td>$</td><td>326.4</td><td></td><td></td><td>$</td><td>174.6</td><td></td><td></td><td>$</td><td>209.5</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>46.9</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.2</td><td></td><td></td><td>0.9</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.1</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2024</td><td></td><td>$</td><td>3,649.3</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>434.5</td><td></td><td></td><td>$</td><td>423.2</td><td></td><td></td><td>$</td><td>326.5</td><td></td><td></td><td>$</td><td>175.7</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr></table>
table
175.7
monetaryItemType
table: <entity> 175.7 </entity> <entity type> monetaryItemType </entity type> <context> Total as of December 31, 2024 | $ | 3,649.3 | $ | 302.7 | $ | 434.5 | $ | 423.2 | $ | 326.5 | $ | 175.7 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,602.4</td><td></td><td></td><td>$</td><td>300.6</td><td></td><td></td><td>$</td><td>434.3</td><td></td><td></td><td>$</td><td>422.3</td><td></td><td></td><td>$</td><td>326.4</td><td></td><td></td><td>$</td><td>174.6</td><td></td><td></td><td>$</td><td>209.5</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>46.9</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.2</td><td></td><td></td><td>0.9</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.1</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2024</td><td></td><td>$</td><td>3,649.3</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>434.5</td><td></td><td></td><td>$</td><td>423.2</td><td></td><td></td><td>$</td><td>326.5</td><td></td><td></td><td>$</td><td>175.7</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr></table>
table
210.5
monetaryItemType
table: <entity> 210.5 </entity> <entity type> monetaryItemType </entity type> <context> Total as of December 31, 2024 | $ | 3,649.3 | $ | 302.7 | $ | 434.5 | $ | 423.2 | $ | 326.5 | $ | 175.7 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
3878.7
monetaryItemType
table: <entity> 3878.7 </entity> <entity type> monetaryItemType </entity type> <context> Qualified Pension Plan | $ | 3,878.7 | $ | 321.1 | $ | 485.6 | $ | 450.3 | $ | 354.0 | $ | 186.6 | $ | 241.9 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
321.1
monetaryItemType
table: <entity> 321.1 </entity> <entity type> monetaryItemType </entity type> <context> Qualified Pension Plan | $ | 3,878.7 | $ | 321.1 | $ | 485.6 | $ | 450.3 | $ | 354.0 | $ | 186.6 | $ | 241.9 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
485.6
monetaryItemType
table: <entity> 485.6 </entity> <entity type> monetaryItemType </entity type> <context> Qualified Pension Plan | $ | 3,878.7 | $ | 321.1 | $ | 485.6 | $ | 450.3 | $ | 354.0 | $ | 186.6 | $ | 241.9 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
450.3
monetaryItemType
table: <entity> 450.3 </entity> <entity type> monetaryItemType </entity type> <context> Qualified Pension Plan | $ | 3,878.7 | $ | 321.1 | $ | 485.6 | $ | 450.3 | $ | 354.0 | $ | 186.6 | $ | 241.9 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
354.0
monetaryItemType
table: <entity> 354.0 </entity> <entity type> monetaryItemType </entity type> <context> Qualified Pension Plan | $ | 3,878.7 | $ | 321.1 | $ | 485.6 | $ | 450.3 | $ | 354.0 | $ | 186.6 | $ | 241.9 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
186.6
monetaryItemType
table: <entity> 186.6 </entity> <entity type> monetaryItemType </entity type> <context> Qualified Pension Plan | $ | 3,878.7 | $ | 321.1 | $ | 485.6 | $ | 450.3 | $ | 354.0 | $ | 186.6 | $ | 241.9 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
241.9
monetaryItemType
table: <entity> 241.9 </entity> <entity type> monetaryItemType </entity type> <context> Qualified Pension Plan | $ | 3,878.7 | $ | 321.1 | $ | 485.6 | $ | 450.3 | $ | 354.0 | $ | 186.6 | $ | 241.9 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
54.8
monetaryItemType
table: <entity> 54.8 </entity> <entity type> monetaryItemType </entity type> <context> Nonqualified Pension Plans | 54.8 | 2.1 | 0.1 | 0.7 | 0.1 | 1.2 | 1.0 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
2.1
monetaryItemType
table: <entity> 2.1 </entity> <entity type> monetaryItemType </entity type> <context> Nonqualified Pension Plans | 54.8 | 2.1 | 0.1 | 0.7 | 0.1 | 1.2 | 1.0 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
0.1
monetaryItemType
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> Nonqualified Pension Plans | 54.8 | 2.1 | 0.1 | 0.7 | 0.1 | 1.2 | 1.0 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
0.7
monetaryItemType
table: <entity> 0.7 </entity> <entity type> monetaryItemType </entity type> <context> Nonqualified Pension Plans | 54.8 | 2.1 | 0.1 | 0.7 | 0.1 | 1.2 | 1.0 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
1.2
monetaryItemType
table: <entity> 1.2 </entity> <entity type> monetaryItemType </entity type> <context> Nonqualified Pension Plans | 54.8 | 2.1 | 0.1 | 0.7 | 0.1 | 1.2 | 1.0 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
1.0
monetaryItemType
table: <entity> 1.0 </entity> <entity type> monetaryItemType </entity type> <context> Nonqualified Pension Plans | 54.8 | 2.1 | 0.1 | 0.7 | 0.1 | 1.2 | 1.0 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
3933.5
monetaryItemType
table: <entity> 3933.5 </entity> <entity type> monetaryItemType </entity type> <context> Total as of December 31, 2023 | $ | 3,933.5 | $ | 323.2 | $ | 485.7 | $ | 451.0 | $ | 354.1 | $ | 187.8 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
323.2
monetaryItemType
table: <entity> 323.2 </entity> <entity type> monetaryItemType </entity type> <context> Total as of December 31, 2023 | $ | 3,933.5 | $ | 323.2 | $ | 485.7 | $ | 451.0 | $ | 354.1 | $ | 187.8 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
485.7
monetaryItemType
table: <entity> 485.7 </entity> <entity type> monetaryItemType </entity type> <context> Total as of December 31, 2023 | $ | 3,933.5 | $ | 323.2 | $ | 485.7 | $ | 451.0 | $ | 354.1 | $ | 187.8 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
451.0
monetaryItemType
table: <entity> 451.0 </entity> <entity type> monetaryItemType </entity type> <context> Total as of December 31, 2023 | $ | 3,933.5 | $ | 323.2 | $ | 485.7 | $ | 451.0 | $ | 354.1 | $ | 187.8 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
354.1
monetaryItemType
table: <entity> 354.1 </entity> <entity type> monetaryItemType </entity type> <context> Total as of December 31, 2023 | $ | 3,933.5 | $ | 323.2 | $ | 485.7 | $ | 451.0 | $ | 354.1 | $ | 187.8 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
187.8
monetaryItemType
table: <entity> 187.8 </entity> <entity type> monetaryItemType </entity type> <context> Total as of December 31, 2023 | $ | 3,933.5 | $ | 323.2 | $ | 485.7 | $ | 451.0 | $ | 354.1 | $ | 187.8 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Qualified Pension Plan</td><td></td><td>$</td><td>3,878.7</td><td></td><td></td><td>$</td><td>321.1</td><td></td><td></td><td>$</td><td>485.6</td><td></td><td></td><td>$</td><td>450.3</td><td></td><td></td><td>$</td><td>354.0</td><td></td><td></td><td>$</td><td>186.6</td><td></td><td></td><td>$</td><td>241.9</td><td></td></tr><tr><td>Nonqualified Pension Plans</td><td></td><td>54.8</td><td></td><td></td><td>2.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>0.7</td><td></td><td></td><td>0.1</td><td></td><td></td><td>1.2</td><td></td><td></td><td>1.0</td><td></td></tr><tr><td>Total as of December 31, 2023</td><td></td><td>$</td><td>3,933.5</td><td></td><td></td><td>$</td><td>323.2</td><td></td><td></td><td>$</td><td>485.7</td><td></td><td></td><td>$</td><td>451.0</td><td></td><td></td><td>$</td><td>354.1</td><td></td><td></td><td>$</td><td>187.8</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr></table>
table
242.9
monetaryItemType
table: <entity> 242.9 </entity> <entity type> monetaryItemType </entity type> <context> Total as of December 31, 2023 | $ | 3,933.5 | $ | 323.2 | $ | 485.7 | $ | 451.0 | $ | 354.1 | $ | 187.8 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
3871.8
monetaryItemType
table: <entity> 3871.8 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 3,871.8 | $ | 322.7 | $ | 0.5 | $ | 1.5 | $ | 0.4 | $ | 1.4 | $ | 227.8 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
322.7
monetaryItemType
table: <entity> 322.7 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 3,871.8 | $ | 322.7 | $ | 0.5 | $ | 1.5 | $ | 0.4 | $ | 1.4 | $ | 227.8 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
0.5
monetaryItemType
table: <entity> 0.5 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 3,871.8 | $ | 322.7 | $ | 0.5 | $ | 1.5 | $ | 0.4 | $ | 1.4 | $ | 227.8 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
1.5
monetaryItemType
table: <entity> 1.5 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 3,871.8 | $ | 322.7 | $ | 0.5 | $ | 1.5 | $ | 0.4 | $ | 1.4 | $ | 227.8 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
0.4
monetaryItemType
table: <entity> 0.4 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 3,871.8 | $ | 322.7 | $ | 0.5 | $ | 1.5 | $ | 0.4 | $ | 1.4 | $ | 227.8 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
1.4
monetaryItemType
table: <entity> 1.4 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 3,871.8 | $ | 322.7 | $ | 0.5 | $ | 1.5 | $ | 0.4 | $ | 1.4 | $ | 227.8 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
227.8
monetaryItemType
table: <entity> 227.8 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 3,871.8 | $ | 322.7 | $ | 0.5 | $ | 1.5 | $ | 0.4 | $ | 1.4 | $ | 227.8 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
3666.2
monetaryItemType
table: <entity> 3666.2 </entity> <entity type> monetaryItemType </entity type> <context> Fair Value of Plan Assets | 3,666.2 | 288.1 | — | — | — | — | 188.8 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
288.1
monetaryItemType
table: <entity> 288.1 </entity> <entity type> monetaryItemType </entity type> <context> Fair Value of Plan Assets | 3,666.2 | 288.1 | — | — | — | — | 188.8 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
—
monetaryItemType
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Fair Value of Plan Assets | 3,666.2 | 288.1 | — | — | — | — | 188.8 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
188.8
monetaryItemType
table: <entity> 188.8 </entity> <entity type> monetaryItemType </entity type> <context> Fair Value of Plan Assets | 3,666.2 | 288.1 | — | — | — | — | 188.8 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
205.6
monetaryItemType
table: <entity> 205.6 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
34.6
monetaryItemType
table: <entity> 34.6 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
0.5
monetaryItemType
table: <entity> 0.5 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 3,871.8 | $ | 322.7 | $ | 0.5 | $ | 1.5 | $ | 0.4 | $ | 1.4 | $ | 227.8 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
1.5
monetaryItemType
table: <entity> 1.5 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 3,871.8 | $ | 322.7 | $ | 0.5 | $ | 1.5 | $ | 0.4 | $ | 1.4 | $ | 227.8 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
0.4
monetaryItemType
table: <entity> 0.4 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 3,871.8 | $ | 322.7 | $ | 0.5 | $ | 1.5 | $ | 0.4 | $ | 1.4 | $ | 227.8 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
1.4
monetaryItemType
table: <entity> 1.4 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 3,871.8 | $ | 322.7 | $ | 0.5 | $ | 1.5 | $ | 0.4 | $ | 1.4 | $ | 227.8 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>3,871.8</td><td></td><td></td><td>$</td><td>322.7</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>1.5</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>227.8</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>3,666.2</td><td></td><td></td><td>288.1</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.8</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2024 Underfunded Projected Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 205.6 )</td><td></td><td></td><td>$</td><td>( 34.6 )</td><td></td><td></td><td>$</td><td>( 0.5 )</td><td></td><td></td><td>$</td><td>( 1.5 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 39.0 )</td><td></td></tr></table>
table
39.0
monetaryItemType
table: <entity> 39.0 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
60.7
monetaryItemType
table: <entity> 60.7 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 60.7 | $ | 343.1 | $ | 0.4 | $ | 1.2 | $ | 0.3 | $ | 1.4 | $ | 261.2 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
343.1
monetaryItemType
table: <entity> 343.1 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 60.7 | $ | 343.1 | $ | 0.4 | $ | 1.2 | $ | 0.3 | $ | 1.4 | $ | 261.2 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
0.4
monetaryItemType
table: <entity> 0.4 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 60.7 | $ | 343.1 | $ | 0.4 | $ | 1.2 | $ | 0.3 | $ | 1.4 | $ | 261.2 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
1.2
monetaryItemType
table: <entity> 1.2 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 60.7 | $ | 343.1 | $ | 0.4 | $ | 1.2 | $ | 0.3 | $ | 1.4 | $ | 261.2 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
0.3
monetaryItemType
table: <entity> 0.3 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 60.7 | $ | 343.1 | $ | 0.4 | $ | 1.2 | $ | 0.3 | $ | 1.4 | $ | 261.2 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
1.4
monetaryItemType
table: <entity> 1.4 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 60.7 | $ | 343.1 | $ | 0.4 | $ | 1.2 | $ | 0.3 | $ | 1.4 | $ | 261.2 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
261.2
monetaryItemType
table: <entity> 261.2 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 60.7 | $ | 343.1 | $ | 0.4 | $ | 1.2 | $ | 0.3 | $ | 1.4 | $ | 261.2 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
—
monetaryItemType
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Fair Value of Plan Assets | — | 332.7 | — | — | — | — | 227.5 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
332.7
monetaryItemType
table: <entity> 332.7 </entity> <entity type> monetaryItemType </entity type> <context> Fair Value of Plan Assets | — | 332.7 | — | — | — | — | 227.5 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
227.5
monetaryItemType
table: <entity> 227.5 </entity> <entity type> monetaryItemType </entity type> <context> Fair Value of Plan Assets | — | 332.7 | — | — | — | — | 227.5 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
60.7
monetaryItemType
table: <entity> 60.7 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 60.7 | $ | 343.1 | $ | 0.4 | $ | 1.2 | $ | 0.3 | $ | 1.4 | $ | 261.2 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
10.4
monetaryItemType
table: <entity> 10.4 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
0.4
monetaryItemType
table: <entity> 0.4 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 60.7 | $ | 343.1 | $ | 0.4 | $ | 1.2 | $ | 0.3 | $ | 1.4 | $ | 261.2 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
1.2
monetaryItemType
table: <entity> 1.2 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 60.7 | $ | 343.1 | $ | 0.4 | $ | 1.2 | $ | 0.3 | $ | 1.4 | $ | 261.2 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
0.3
monetaryItemType
table: <entity> 0.3 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 60.7 | $ | 343.1 | $ | 0.4 | $ | 1.2 | $ | 0.3 | $ | 1.4 | $ | 261.2 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
1.4
monetaryItemType
table: <entity> 1.4 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ | 60.7 | $ | 343.1 | $ | 0.4 | $ | 1.2 | $ | 0.3 | $ | 1.4 | $ | 261.2 </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Projected Benefit Obligation</td><td>$</td><td>60.7</td><td></td><td></td><td>$</td><td>343.1</td><td></td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>0.3</td><td></td><td></td><td>$</td><td>1.4</td><td></td><td></td><td>$</td><td>261.2</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>332.7</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Projected Benefit Obligation as of December 31, 2023 Underfunded Projected Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 60.7 )</td><td></td><td></td><td>$</td><td>( 10.4 )</td><td></td><td></td><td>$</td><td>( 0.4 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 0.3 )</td><td></td><td></td><td>$</td><td>( 1.4 )</td><td></td><td></td><td>$</td><td>( 33.7 )</td><td></td></tr></table>
table
33.7
monetaryItemType
table: <entity> 33.7 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
46.9
monetaryItemType
table: <entity> 46.9 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 46.9 | $ | 302.7 | $ | 0.2 | $ | 0.9 | $ | 0.1 | $ | 1.1 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
302.7
monetaryItemType
table: <entity> 302.7 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 46.9 | $ | 302.7 | $ | 0.2 | $ | 0.9 | $ | 0.1 | $ | 1.1 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
0.2
monetaryItemType
table: <entity> 0.2 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 46.9 | $ | 302.7 | $ | 0.2 | $ | 0.9 | $ | 0.1 | $ | 1.1 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
0.9
monetaryItemType
table: <entity> 0.9 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 46.9 | $ | 302.7 | $ | 0.2 | $ | 0.9 | $ | 0.1 | $ | 1.1 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
0.1
monetaryItemType
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 46.9 | $ | 302.7 | $ | 0.2 | $ | 0.9 | $ | 0.1 | $ | 1.1 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
1.1
monetaryItemType
table: <entity> 1.1 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 46.9 | $ | 302.7 | $ | 0.2 | $ | 0.9 | $ | 0.1 | $ | 1.1 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
210.5
monetaryItemType
table: <entity> 210.5 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 46.9 | $ | 302.7 | $ | 0.2 | $ | 0.9 | $ | 0.1 | $ | 1.1 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
—
monetaryItemType
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Fair Value of Plan Assets | — | 288.0 | — | — | — | — | 188.9 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
288.0
monetaryItemType
table: <entity> 288.0 </entity> <entity type> monetaryItemType </entity type> <context> Fair Value of Plan Assets | — | 288.0 | — | — | — | — | 188.9 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
188.9
monetaryItemType
table: <entity> 188.9 </entity> <entity type> monetaryItemType </entity type> <context> Fair Value of Plan Assets | — | 288.0 | — | — | — | — | 188.9 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
46.9
monetaryItemType
table: <entity> 46.9 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 46.9 | $ | 302.7 | $ | 0.2 | $ | 0.9 | $ | 0.1 | $ | 1.1 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
14.7
monetaryItemType
table: <entity> 14.7 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
0.2
monetaryItemType
table: <entity> 0.2 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 46.9 | $ | 302.7 | $ | 0.2 | $ | 0.9 | $ | 0.1 | $ | 1.1 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
0.9
monetaryItemType
table: <entity> 0.9 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 46.9 | $ | 302.7 | $ | 0.2 | $ | 0.9 | $ | 0.1 | $ | 1.1 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
0.1
monetaryItemType
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 46.9 | $ | 302.7 | $ | 0.2 | $ | 0.9 | $ | 0.1 | $ | 1.1 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
1.1
monetaryItemType
table: <entity> 1.1 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 46.9 | $ | 302.7 | $ | 0.2 | $ | 0.9 | $ | 0.1 | $ | 1.1 | $ | 210.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>46.9</td><td></td><td></td><td>$</td><td>302.7</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td>$</td><td>0.9</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>210.5</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>288.0</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>188.9</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2024 Underfunded Accumulated Benefit Obligation as of December 31, 2024</td><td>$</td><td>( 46.9 )</td><td></td><td></td><td>$</td><td>( 14.7 )</td><td></td><td></td><td>$</td><td>( 0.2 )</td><td></td><td></td><td>$</td><td>( 0.9 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.1 )</td><td></td><td></td><td>$</td><td>( 21.6 )</td><td></td></tr></table>
table
21.6
monetaryItemType
table: <entity> 21.6 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>54.8</td><td></td><td></td><td>$</td><td>2.1</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>0.7</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2023 Underfunded Accumulated Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 54.8 )</td><td></td><td></td><td>$</td><td>( 2.1 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 0.7 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 15.4 )</td><td></td></tr></table>
table
54.8
monetaryItemType
table: <entity> 54.8 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 54.8 | $ | 2.1 | $ | 0.1 | $ | 0.7 | $ | 0.1 | $ | 1.2 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>54.8</td><td></td><td></td><td>$</td><td>2.1</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>0.7</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2023 Underfunded Accumulated Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 54.8 )</td><td></td><td></td><td>$</td><td>( 2.1 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 0.7 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 15.4 )</td><td></td></tr></table>
table
2.1
monetaryItemType
table: <entity> 2.1 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 54.8 | $ | 2.1 | $ | 0.1 | $ | 0.7 | $ | 0.1 | $ | 1.2 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>54.8</td><td></td><td></td><td>$</td><td>2.1</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>0.7</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2023 Underfunded Accumulated Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 54.8 )</td><td></td><td></td><td>$</td><td>( 2.1 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 0.7 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 15.4 )</td><td></td></tr></table>
table
0.1
monetaryItemType
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 54.8 | $ | 2.1 | $ | 0.1 | $ | 0.7 | $ | 0.1 | $ | 1.2 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>54.8</td><td></td><td></td><td>$</td><td>2.1</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>0.7</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2023 Underfunded Accumulated Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 54.8 )</td><td></td><td></td><td>$</td><td>( 2.1 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 0.7 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 15.4 )</td><td></td></tr></table>
table
0.7
monetaryItemType
table: <entity> 0.7 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 54.8 | $ | 2.1 | $ | 0.1 | $ | 0.7 | $ | 0.1 | $ | 1.2 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>54.8</td><td></td><td></td><td>$</td><td>2.1</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>0.7</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2023 Underfunded Accumulated Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 54.8 )</td><td></td><td></td><td>$</td><td>( 2.1 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 0.7 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 15.4 )</td><td></td></tr></table>
table
1.2
monetaryItemType
table: <entity> 1.2 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 54.8 | $ | 2.1 | $ | 0.1 | $ | 0.7 | $ | 0.1 | $ | 1.2 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>54.8</td><td></td><td></td><td>$</td><td>2.1</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>0.7</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2023 Underfunded Accumulated Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 54.8 )</td><td></td><td></td><td>$</td><td>( 2.1 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 0.7 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 15.4 )</td><td></td></tr></table>
table
242.9
monetaryItemType
table: <entity> 242.9 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 54.8 | $ | 2.1 | $ | 0.1 | $ | 0.7 | $ | 0.1 | $ | 1.2 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>54.8</td><td></td><td></td><td>$</td><td>2.1</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>0.7</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2023 Underfunded Accumulated Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 54.8 )</td><td></td><td></td><td>$</td><td>( 2.1 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 0.7 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 15.4 )</td><td></td></tr></table>
table
—
monetaryItemType
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Fair Value of Plan Assets | — | — | — | — | — | — | 227.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>54.8</td><td></td><td></td><td>$</td><td>2.1</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>0.7</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2023 Underfunded Accumulated Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 54.8 )</td><td></td><td></td><td>$</td><td>( 2.1 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 0.7 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 15.4 )</td><td></td></tr></table>
table
227.5
monetaryItemType
table: <entity> 227.5 </entity> <entity type> monetaryItemType </entity type> <context> Fair Value of Plan Assets | — | — | — | — | — | — | 227.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>54.8</td><td></td><td></td><td>$</td><td>2.1</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>0.7</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2023 Underfunded Accumulated Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 54.8 )</td><td></td><td></td><td>$</td><td>( 2.1 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 0.7 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 15.4 )</td><td></td></tr></table>
table
54.8
monetaryItemType
table: <entity> 54.8 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 54.8 | $ | 2.1 | $ | 0.1 | $ | 0.7 | $ | 0.1 | $ | 1.2 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>54.8</td><td></td><td></td><td>$</td><td>2.1</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>0.7</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2023 Underfunded Accumulated Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 54.8 )</td><td></td><td></td><td>$</td><td>( 2.1 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 0.7 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 15.4 )</td><td></td></tr></table>
table
2.1
monetaryItemType
table: <entity> 2.1 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 54.8 | $ | 2.1 | $ | 0.1 | $ | 0.7 | $ | 0.1 | $ | 1.2 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>54.8</td><td></td><td></td><td>$</td><td>2.1</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>0.7</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2023 Underfunded Accumulated Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 54.8 )</td><td></td><td></td><td>$</td><td>( 2.1 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 0.7 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 15.4 )</td><td></td></tr></table>
table
0.1
monetaryItemType
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 54.8 | $ | 2.1 | $ | 0.1 | $ | 0.7 | $ | 0.1 | $ | 1.2 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>54.8</td><td></td><td></td><td>$</td><td>2.1</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>0.7</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2023 Underfunded Accumulated Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 54.8 )</td><td></td><td></td><td>$</td><td>( 2.1 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 0.7 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 15.4 )</td><td></td></tr></table>
table
0.7
monetaryItemType
table: <entity> 0.7 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 54.8 | $ | 2.1 | $ | 0.1 | $ | 0.7 | $ | 0.1 | $ | 1.2 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>54.8</td><td></td><td></td><td>$</td><td>2.1</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>0.7</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2023 Underfunded Accumulated Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 54.8 )</td><td></td><td></td><td>$</td><td>( 2.1 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 0.7 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 15.4 )</td><td></td></tr></table>
table
1.2
monetaryItemType
table: <entity> 1.2 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ | 54.8 | $ | 2.1 | $ | 0.1 | $ | 0.7 | $ | 0.1 | $ | 1.2 | $ | 242.9 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td>(in millions)</td></tr><tr><td>Accumulated Benefit Obligation</td><td>$</td><td>54.8</td><td></td><td></td><td>$</td><td>2.1</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>0.7</td><td></td><td></td><td>$</td><td>0.1</td><td></td><td></td><td>$</td><td>1.2</td><td></td><td></td><td>$</td><td>242.9</td><td></td></tr><tr><td>Fair Value of Plan Assets</td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>227.5</td><td></td></tr><tr><td>Underfunded Accumulated Benefit Obligation as of December 31, 2023 Underfunded Accumulated Benefit Obligation as of December 31, 2023</td><td>$</td><td>( 54.8 )</td><td></td><td></td><td>$</td><td>( 2.1 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 0.7 )</td><td></td><td></td><td>$</td><td>( 0.1 )</td><td></td><td></td><td>$</td><td>( 1.2 )</td><td></td><td></td><td>$</td><td>( 15.4 )</td><td></td></tr></table>
table
15.4
monetaryItemType
table: <entity> 15.4 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Pension Plans</td><td></td><td>$</td><td>101.2</td><td></td><td></td><td>$</td><td>11.8</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>2.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>2.0</td><td></td><td></td><td>$</td><td>8.8</td><td></td></tr><tr><td>OPEB</td><td></td><td>2.7</td><td></td><td></td><td>—</td><td></td><td></td><td>1.4</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td></tr></table>
table
101.2
monetaryItemType
table: <entity> 101.2 </entity> <entity type> monetaryItemType </entity type> <context> Pension Plans | $ | 101.2 | $ | 11.8 | $ | 0.5 | $ | 2.6 | $ | — | $ | 2.0 | $ | 8.8 </context>
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Pension Plans</td><td></td><td>$</td><td>101.2</td><td></td><td></td><td>$</td><td>11.8</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>2.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>2.0</td><td></td><td></td><td>$</td><td>8.8</td><td></td></tr><tr><td>OPEB</td><td></td><td>2.7</td><td></td><td></td><td>—</td><td></td><td></td><td>1.4</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td></tr></table>
table
11.8
monetaryItemType
table: <entity> 11.8 </entity> <entity type> monetaryItemType </entity type> <context> Pension Plans | $ | 101.2 | $ | 11.8 | $ | 0.5 | $ | 2.6 | $ | — | $ | 2.0 | $ | 8.8 </context>
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Pension Plans</td><td></td><td>$</td><td>101.2</td><td></td><td></td><td>$</td><td>11.8</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>2.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>2.0</td><td></td><td></td><td>$</td><td>8.8</td><td></td></tr><tr><td>OPEB</td><td></td><td>2.7</td><td></td><td></td><td>—</td><td></td><td></td><td>1.4</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td></tr></table>
table
0.5
monetaryItemType
table: <entity> 0.5 </entity> <entity type> monetaryItemType </entity type> <context> Pension Plans | $ | 101.2 | $ | 11.8 | $ | 0.5 | $ | 2.6 | $ | — | $ | 2.0 | $ | 8.8 </context>
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Pension Plans</td><td></td><td>$</td><td>101.2</td><td></td><td></td><td>$</td><td>11.8</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>2.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>2.0</td><td></td><td></td><td>$</td><td>8.8</td><td></td></tr><tr><td>OPEB</td><td></td><td>2.7</td><td></td><td></td><td>—</td><td></td><td></td><td>1.4</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td></tr></table>
table
2.6
monetaryItemType
table: <entity> 2.6 </entity> <entity type> monetaryItemType </entity type> <context> Pension Plans | $ | 101.2 | $ | 11.8 | $ | 0.5 | $ | 2.6 | $ | — | $ | 2.0 | $ | 8.8 </context>
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Pension Plans</td><td></td><td>$</td><td>101.2</td><td></td><td></td><td>$</td><td>11.8</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>2.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>2.0</td><td></td><td></td><td>$</td><td>8.8</td><td></td></tr><tr><td>OPEB</td><td></td><td>2.7</td><td></td><td></td><td>—</td><td></td><td></td><td>1.4</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td></tr></table>
table
—
monetaryItemType
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Pension Plans | $ | 101.2 | $ | 11.8 | $ | 0.5 | $ | 2.6 | $ | — | $ | 2.0 | $ | 8.8 </context>
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Pension Plans</td><td></td><td>$</td><td>101.2</td><td></td><td></td><td>$</td><td>11.8</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>2.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>2.0</td><td></td><td></td><td>$</td><td>8.8</td><td></td></tr><tr><td>OPEB</td><td></td><td>2.7</td><td></td><td></td><td>—</td><td></td><td></td><td>1.4</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td></tr></table>
table
2.0
monetaryItemType
table: <entity> 2.0 </entity> <entity type> monetaryItemType </entity type> <context> Pension Plans | $ | 101.2 | $ | 11.8 | $ | 0.5 | $ | 2.6 | $ | — | $ | 2.0 | $ | 8.8 </context>
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Pension Plans</td><td></td><td>$</td><td>101.2</td><td></td><td></td><td>$</td><td>11.8</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>2.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>2.0</td><td></td><td></td><td>$</td><td>8.8</td><td></td></tr><tr><td>OPEB</td><td></td><td>2.7</td><td></td><td></td><td>—</td><td></td><td></td><td>1.4</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td></tr></table>
table
8.8
monetaryItemType
table: <entity> 8.8 </entity> <entity type> monetaryItemType </entity type> <context> Pension Plans | $ | 101.2 | $ | 11.8 | $ | 0.5 | $ | 2.6 | $ | — | $ | 2.0 | $ | 8.8 </context>
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Pension Plans</td><td></td><td>$</td><td>101.2</td><td></td><td></td><td>$</td><td>11.8</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>2.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>2.0</td><td></td><td></td><td>$</td><td>8.8</td><td></td></tr><tr><td>OPEB</td><td></td><td>2.7</td><td></td><td></td><td>—</td><td></td><td></td><td>1.4</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td></tr></table>
table
2.7
monetaryItemType
table: <entity> 2.7 </entity> <entity type> monetaryItemType </entity type> <context> OPEB | 2.7 | — | 1.4 | — | — | — | — </context>
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>Pension Plans</td><td></td><td>$</td><td>101.2</td><td></td><td></td><td>$</td><td>11.8</td><td></td><td></td><td>$</td><td>0.5</td><td></td><td></td><td>$</td><td>2.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>2.0</td><td></td><td></td><td>$</td><td>8.8</td><td></td></tr><tr><td>OPEB</td><td></td><td>2.7</td><td></td><td></td><td>—</td><td></td><td></td><td>1.4</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td><td></td><td>—</td><td></td></tr></table>
table
1.4
monetaryItemType
table: <entity> 1.4 </entity> <entity type> monetaryItemType </entity type> <context> OPEB | 2.7 | — | 1.4 | — | — | — | — </context>
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Plans</td><td></td><td>AEP</td><td></td><td>AEP Texas</td><td></td><td>APCo</td><td></td><td>I&M</td><td></td><td>OPCo</td><td></td><td>PSO</td><td></td><td>SWEPCo</td></tr><tr><td></td><td></td><td>(in millions)</td></tr><tr><td>2025</td><td></td><td>$</td><td>341.5</td><td></td><td></td><td>$</td><td>32.2</td><td></td><td></td><td>$</td><td>42.3</td><td></td><td></td><td>$</td><td>40.1</td><td></td><td></td><td>$</td><td>31.6</td><td></td><td></td><td>$</td><td>17.3</td><td></td><td></td><td>$</td><td>20.7</td><td></td></tr><tr><td>2026</td><td></td><td>340.4</td><td></td><td></td><td>31.0</td><td></td><td></td><td>42.1</td><td></td><td></td><td>40.1</td><td></td><td></td><td>31.0</td><td></td><td></td><td>17.1</td><td></td><td></td><td>19.2</td><td></td></tr><tr><td>2027</td><td></td><td>334.8</td><td></td><td></td><td>28.8</td><td></td><td></td><td>40.0</td><td></td><td></td><td>39.0</td><td></td><td></td><td>30.8</td><td></td><td></td><td>17.1</td><td></td><td></td><td>20.4</td><td></td></tr><tr><td>2028</td><td></td><td>335.7</td><td></td><td></td><td>29.5</td><td></td><td></td><td>40.2</td><td></td><td></td><td>38.8</td><td></td><td></td><td>30.0</td><td></td><td></td><td>16.9</td><td></td><td></td><td>19.4</td><td></td></tr><tr><td>2029</td><td></td><td>322.7</td><td></td><td></td><td>27.8</td><td></td><td></td><td>38.6</td><td></td><td></td><td>37.1</td><td></td><td></td><td>29.5</td><td></td><td></td><td>15.1</td><td></td><td></td><td>19.0</td><td></td></tr><tr><td>Years 2030 to 2034, in Total</td><td></td><td>1,530.3</td><td></td><td></td><td>120.9</td><td></td><td></td><td>181.6</td><td></td><td></td><td>179.0</td><td></td><td></td><td>137.8</td><td></td><td></td><td>73.3</td><td></td><td></td><td>88.4</td><td></td></tr></table>
table
341.5
monetaryItemType
table: <entity> 341.5 </entity> <entity type> monetaryItemType </entity type> <context> 2025 | $ | 341.5 | $ | 32.2 | $ | 42.3 | $ | 40.1 | $ | 31.6 | $ | 17.3 | $ | 20.7 </context>
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths