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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...
table
16.0
monetaryItemType
table: <entity> 16.0 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
<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...
table
53.8
monetaryItemType
table: <entity> 53.8 </entity> <entity type> monetaryItemType </entity type> <context> Reclassifications from AOCI, before Income Tax (Expense) Benefit Reclassifications from AOCI, before Income Tax (Expense) Benefit | 72.2 | ( 2.4 ) | ( 16.0 ) | β€” | 53.8 </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
<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...
table
15.0
monetaryItemType
table: <entity> 15.0 </entity> <entity type> monetaryItemType </entity type> <context> Income Tax (Expense) Benefit Income Tax (Expense) Benefit | 15.0 | ( 0.4 ) | ( 3.4 ) | β€” | 11.2 </context>
us-gaap:ReclassificationFromAociCurrentPeriodTax
<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...
table
0.4
monetaryItemType
table: <entity> 0.4 </entity> <entity type> monetaryItemType </entity type> <context> Net Current Period Other Comprehensive Income (Loss) Net Current Period Other Comprehensive Income (Loss) | ( 118.6 ) | ( 8.4 ) | ( 12.6 ) | 0.4 | ( 139.2 ) </context>
us-gaap:ReclassificationFromAociCurrentPeriodTax
<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...
table
3.4
monetaryItemType
table: <entity> 3.4 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReclassificationFromAociCurrentPeriodTax
<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...
table
11.2
monetaryItemType
table: <entity> 11.2 </entity> <entity type> monetaryItemType </entity type> <context> Income Tax (Expense) Benefit Income Tax (Expense) Benefit | 15.0 | ( 0.4 ) | ( 3.4 ) | β€” | 11.2 </context>
us-gaap:ReclassificationFromAociCurrentPeriodTax
<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...
table
57.2
monetaryItemType
table: <entity> 57.2 </entity> <entity type> monetaryItemType </entity type> <context> Reclassifications from AOCI, Net of Income Tax (Expense) Benefit Reclassifications from AOCI, Net of Income Tax (Expense) Benefit | 57.2 | ( 2.0 ) | ( 12.6 ) | β€” | 42.6 </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
<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...
table
2.0
monetaryItemType
table: <entity> 2.0 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
<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...
table
12.6
monetaryItemType
table: <entity> 12.6 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
<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...
table
42.6
monetaryItemType
table: <entity> 42.6 </entity> <entity type> monetaryItemType </entity type> <context> Reclassifications from AOCI, Net of Income Tax (Expense) Benefit Reclassifications from AOCI, Net of Income Tax (Expense) Benefit | 57.2 | ( 2.0 ) | ( 12.6 ) | β€” | 42.6 </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
<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...
table
118.6
monetaryItemType
table: <entity> 118.6 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossNetOfTax
<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...
table
8.4
monetaryItemType
table: <entity> 8.4 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossNetOfTax
<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...
table
12.6
monetaryItemType
table: <entity> 12.6 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossNetOfTax
<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...
table
0.4
monetaryItemType
table: <entity> 0.4 </entity> <entity type> monetaryItemType </entity type> <context> Net Current Period Other Comprehensive Income (Loss) Net Current Period Other Comprehensive Income (Loss) | ( 118.6 ) | ( 8.4 ) | ( 12.6 ) | 0.4 | ( 139.2 ) </context>
us-gaap:OtherComprehensiveIncomeLossNetOfTax
<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...
table
139.2
monetaryItemType
table: <entity> 139.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossNetOfTax
<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...
table
104.9
monetaryItemType
table: <entity> 104.9 </entity> <entity type> monetaryItemType </entity type> <context> Balance in AOCI as of December 31, 2023 | $ | 104.9 | $ | ( 8.1 ) | $ | 92.6 | $ | ( 244.9 ) | $ | ( 55.5 ) </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<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...
table
8.1
monetaryItemType
table: <entity> 8.1 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<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...
table
92.6
monetaryItemType
table: <entity> 92.6 </entity> <entity type> monetaryItemType </entity type> <context> Balance in AOCI as of December 31, 2023 | $ | 104.9 | $ | ( 8.1 ) | $ | 92.6 | $ | ( 244.9 ) | $ | ( 55.5 ) </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<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...
table
244.9
monetaryItemType
table: <entity> 244.9 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<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...
table
55.5
monetaryItemType
table: <entity> 55.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<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...
table
163.7
monetaryItemType
table: <entity> 163.7 </entity> <entity type> monetaryItemType </entity type> <context> Balance in AOCI as of December 31, 2021 | $ | 163.7 | $ | ( 21.3 ) | $ | 115.6 | $ | ( 73.2 ) | $ | 184.8 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<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...
table
21.3
monetaryItemType
table: <entity> 21.3 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<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...
table
115.6
monetaryItemType
table: <entity> 115.6 </entity> <entity type> monetaryItemType </entity type> <context> Balance in AOCI as of December 31, 2021 | $ | 163.7 | $ | ( 21.3 ) | $ | 115.6 | $ | ( 73.2 ) | $ | 184.8 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<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...
table
73.2
monetaryItemType
table: <entity> 73.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<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...
table
184.8
monetaryItemType
table: <entity> 184.8 </entity> <entity type> monetaryItemType </entity type> <context> Balance in AOCI as of December 31, 2021 | $ | 163.7 | $ | ( 21.3 ) | $ | 115.6 | $ | ( 73.2 ) | $ | 184.8 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<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...
table
477.3
monetaryItemType
table: <entity> 477.3 </entity> <entity type> monetaryItemType </entity type> <context> Change in Fair Value Recognized in AOCI, Net of Tax | 477.3 | 18.4 | β€” | ( 155.4 ) | 340.3 </context>
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
<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...
table
18.4
monetaryItemType
table: <entity> 18.4 </entity> <entity type> monetaryItemType </entity type> <context> Change in Fair Value Recognized in AOCI, Net of Tax | 477.3 | 18.4 | β€” | ( 155.4 ) | 340.3 </context>
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
<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...
table
β€”
monetaryItemType
table: <entity> β€” </entity> <entity type> monetaryItemType </entity type> <context> Change in Fair Value Recognized in AOCI, Net of Tax | 477.3 | 18.4 | β€” | ( 155.4 ) | 340.3 </context>
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
<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...
table
155.4
monetaryItemType
table: <entity> 155.4 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
<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...
table
340.3
monetaryItemType
table: <entity> 340.3 </entity> <entity type> monetaryItemType </entity type> <context> Change in Fair Value Recognized in AOCI, Net of Tax | 477.3 | 18.4 | β€” | ( 155.4 ) | 340.3 </context>
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
<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...
table
0.1
monetaryItemType
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> Generation & Marketing Revenues (a) | 0.1 | β€” | β€” | β€” | 0.1 </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
<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...
table
528.6
monetaryItemType
table: <entity> 528.6 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
<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...
table
4.0
monetaryItemType
table: <entity> 4.0 </entity> <entity type> monetaryItemType </entity type> <context> Interest Expense (a) Interest Expense (a) | β€” | 4.0 | β€” | β€” | 4.0 </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
<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...
table
21.8
monetaryItemType
table: <entity> 21.8 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
<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...
table
8.6
monetaryItemType
table: <entity> 8.6 </entity> <entity type> monetaryItemType </entity type> <context> Amortization of Actuarial (Gains) Losses Amortization of Actuarial (Gains) Losses | β€” | β€” | 8.6 | β€” | 8.6 </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
<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...
table
528.5
monetaryItemType
table: <entity> 528.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
<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...
table
13.2
monetaryItemType
table: <entity> 13.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
<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...
table
537.7
monetaryItemType
table: <entity> 537.7 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
<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...
table
111.0
monetaryItemType
table: <entity> 111.0 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReclassificationFromAociCurrentPeriodTax
<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...
table
0.8
monetaryItemType
table: <entity> 0.8 </entity> <entity type> monetaryItemType </entity type> <context> Income Tax (Expense) Benefit Income Tax (Expense) Benefit | ( 111.0 ) | 0.8 | ( 2.8 ) | β€” | ( 113.0 ) </context>
us-gaap:ReclassificationFromAociCurrentPeriodTax
<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...
table
2.8
monetaryItemType
table: <entity> 2.8 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReclassificationFromAociCurrentPeriodTax
<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...
table
113.0
monetaryItemType
table: <entity> 113.0 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReclassificationFromAociCurrentPeriodTax
<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...
table
417.5
monetaryItemType
table: <entity> 417.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
<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...
table
3.2
monetaryItemType
table: <entity> 3.2 </entity> <entity type> monetaryItemType </entity type> <context> Reclassifications from AOCI, Net of Income Tax (Expense) Benefit Reclassifications from AOCI, Net of Income Tax (Expense) Benefit | ( 417.5 ) | 3.2 | ( 10.4 ) | β€” | ( 424.7 ) </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
<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...
table
10.4
monetaryItemType
table: <entity> 10.4 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
<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...
table
424.7
monetaryItemType
table: <entity> 424.7 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
<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...
table
59.8
monetaryItemType
table: <entity> 59.8 </entity> <entity type> monetaryItemType </entity type> <context> Net Current Period Other Comprehensive Income (Loss) Net Current Period Other Comprehensive Income (Loss) | 59.8 | 21.6 | ( 10.4 ) | ( 172.1 ) | ( 101.1 ) </context>
us-gaap:OtherComprehensiveIncomeLossNetOfTax
<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...
table
21.6
monetaryItemType
table: <entity> 21.6 </entity> <entity type> monetaryItemType </entity type> <context> Net Current Period Other Comprehensive Income (Loss) Net Current Period Other Comprehensive Income (Loss) | 59.8 | 21.6 | ( 10.4 ) | ( 172.1 ) | ( 101.1 ) </context>
us-gaap:OtherComprehensiveIncomeLossNetOfTax
<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...
table
10.4
monetaryItemType
table: <entity> 10.4 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossNetOfTax
<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...
table
172.1
monetaryItemType
table: <entity> 172.1 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossNetOfTax
<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...
table
101.1
monetaryItemType
table: <entity> 101.1 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossNetOfTax
<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...
table
223.5
monetaryItemType
table: <entity> 223.5 </entity> <entity type> monetaryItemType </entity type> <context> Balance in AOCI as of December 31, 2022 | $ | 223.5 | $ | 0.3 | $ | 105.2 | $ | ( 245.3 ) | $ | 83.7 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<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...
table
0.3
monetaryItemType
table: <entity> 0.3 </entity> <entity type> monetaryItemType </entity type> <context> Balance in AOCI as of December 31, 2022 | $ | 223.5 | $ | 0.3 | $ | 105.2 | $ | ( 245.3 ) | $ | 83.7 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<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...
table
105.2
monetaryItemType
table: <entity> 105.2 </entity> <entity type> monetaryItemType </entity type> <context> Balance in AOCI as of December 31, 2022 | $ | 223.5 | $ | 0.3 | $ | 105.2 | $ | ( 245.3 ) | $ | 83.7 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<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...
table
245.3
monetaryItemType
table: <entity> 245.3 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<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...
table
83.7
monetaryItemType
table: <entity> 83.7 </entity> <entity type> monetaryItemType </entity type> <context> Balance in AOCI as of December 31, 2022 | $ | 223.5 | $ | 0.3 | $ | 105.2 | $ | ( 245.3 ) | $ | 83.7 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<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></tr><tr><td></td></tr><tr><td></td><td></td><td>December 31,</td>...
table
37.2
monetaryItemType
table: <entity> 37.2 </entity> <entity type> monetaryItemType </entity type> <context> Arkansas | $ | 37.2 | $ | 54.2 | 6 years | (a) </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td></tr><tr><td></td><td></td><td>December 31,</td>...
table
54.2
monetaryItemType
table: <entity> 54.2 </entity> <entity type> monetaryItemType </entity type> <context> Arkansas | $ | 37.2 | $ | 54.2 | 6 years | (a) </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td></tr><tr><td></td><td></td><td>December 31,</td>...
table
70.6
monetaryItemType
table: <entity> 70.6 </entity> <entity type> monetaryItemType </entity type> <context> Louisiana | 70.6 | 97.2 | (b) | (b) </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td></tr><tr><td></td><td></td><td>December 31,</td>...
table
97.2
monetaryItemType
table: <entity> 97.2 </entity> <entity type> monetaryItemType </entity type> <context> Louisiana | 70.6 | 97.2 | (b) | (b) </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td></tr><tr><td></td><td></td><td>December 31,</td>...
table
72.7
monetaryItemType
table: <entity> 72.7 </entity> <entity type> monetaryItemType </entity type> <context> Texas | 72.7 | 101.9 | 5 years | 1.65 % </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td></tr><tr><td></td><td></td><td>December 31,</td>...
table
101.9
monetaryItemType
table: <entity> 101.9 </entity> <entity type> monetaryItemType </entity type> <context> Texas | 72.7 | 101.9 | 5 years | 1.65 % </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td></tr><tr><td></td><td></td><td>December 31,</td>...
table
180.5
monetaryItemType
table: <entity> 180.5 </entity> <entity type> monetaryItemType </entity type> <context> Total | $ | 180.5 | $ | 253.3 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td></tr><tr><td></td><td></td><td>December 31,</td>...
table
253.3
monetaryItemType
table: <entity> 253.3 </entity> <entity type> monetaryItemType </entity type> <context> Total | $ | 180.5 | $ | 253.3 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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...
table
101.7
monetaryItemType
table: <entity> 101.7 </entity> <entity type> monetaryItemType </entity type> <context> Northeastern Plant, Unit 3 | $ | 101.7 | $ | 189.0 | $ | 21.0 | (b) | 2026 | (c) | $ | 16.2 </context>
us-gaap:NetRegulatoryAssets
<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...
table
16.2
monetaryItemType
table: <entity> 16.2 </entity> <entity type> monetaryItemType </entity type> <context> Northeastern Plant, Unit 3 | $ | 101.7 | $ | 189.0 | $ | 21.0 | (b) | 2026 | (c) | $ | 16.2 </context>
us-gaap:Depreciation
<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...
table
324.3
monetaryItemType
table: <entity> 324.3 </entity> <entity type> monetaryItemType </entity type> <context> Welsh Plant, Units 1 and 3 | 324.3 | 168.6 | 57.6 | (d) | 2028 | (e) | (f) | 43.6 </context>
us-gaap:NetRegulatoryAssets
<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...
table
43.6
monetaryItemType
table: <entity> 43.6 </entity> <entity type> monetaryItemType </entity type> <context> Welsh Plant, Units 1 and 3 | 324.3 | 168.6 | 57.6 | (d) | 2028 | (e) | (f) | 43.6 </context>
us-gaap:Depreciation
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
245.7
monetaryItemType
table: <entity> 245.7 </entity> <entity type> monetaryItemType </entity type> <context> Under-recovered Fuel Costs - earns a return | $ | 245.7 | $ | 357.4 | 1 year </context>
us-gaap:RegulatoryAssetsCurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
357.4
monetaryItemType
table: <entity> 357.4 </entity> <entity type> monetaryItemType </entity type> <context> Under-recovered Fuel Costs - earns a return | $ | 245.7 | $ | 357.4 | 1 year </context>
us-gaap:RegulatoryAssetsCurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
116.0
monetaryItemType
table: <entity> 116.0 </entity> <entity type> monetaryItemType </entity type> <context> Under-recovered Fuel Costs - does not earn a return | 116.0 | 62.7 | 1 year </context>
us-gaap:RegulatoryAssetsCurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
62.7
monetaryItemType
table: <entity> 62.7 </entity> <entity type> monetaryItemType </entity type> <context> Under-recovered Fuel Costs - does not earn a return | 116.0 | 62.7 | 1 year </context>
us-gaap:RegulatoryAssetsCurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
84.2
monetaryItemType
table: <entity> 84.2 </entity> <entity type> monetaryItemType </entity type> <context> Unrecovered Winter Storm Fuel Costs - earns a return (a) | 84.2 | 93.9 | 1 year </context>
us-gaap:RegulatoryAssetsCurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
93.9
monetaryItemType
table: <entity> 93.9 </entity> <entity type> monetaryItemType </entity type> <context> Unrecovered Winter Storm Fuel Costs - earns a return (a) | 84.2 | 93.9 | 1 year </context>
us-gaap:RegulatoryAssetsCurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
445.9
monetaryItemType
table: <entity> 445.9 </entity> <entity type> monetaryItemType </entity type> <context> Total Current Regulatory Assets | $ | 445.9 | $ | 514.0 </context>
us-gaap:RegulatoryAssetsCurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
514.0
monetaryItemType
table: <entity> 514.0 </entity> <entity type> monetaryItemType </entity type> <context> Total Current Regulatory Assets | $ | 445.9 | $ | 514.0 </context>
us-gaap:RegulatoryAssetsCurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
168.6
monetaryItemType
table: <entity> 168.6 </entity> <entity type> monetaryItemType </entity type> <context> Welsh Plant, Units 1 and 3 Accelerated Depreciation | $ | 168.6 | $ | 125.6 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
125.6
monetaryItemType
table: <entity> 125.6 </entity> <entity type> monetaryItemType </entity type> <context> Welsh Plant, Units 1 and 3 Accelerated Depreciation | $ | 168.6 | $ | 125.6 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
121.3
monetaryItemType
table: <entity> 121.3 </entity> <entity type> monetaryItemType </entity type> <context> Pirkey Plant Accelerated Depreciation | 121.3 | 114.4 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
114.4
monetaryItemType
table: <entity> 114.4 </entity> <entity type> monetaryItemType </entity type> <context> Pirkey Plant Accelerated Depreciation | 121.3 | 114.4 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
51.0
monetaryItemType
table: <entity> 51.0 </entity> <entity type> monetaryItemType </entity type> <context> Storm-Related Costs | 51.0 | β€” </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
β€”
monetaryItemType
table: <entity> β€” </entity> <entity type> monetaryItemType </entity type> <context> Storm-Related Costs | 51.0 | β€” </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
33.5
monetaryItemType
table: <entity> 33.5 </entity> <entity type> monetaryItemType </entity type> <context> Unrecovered Winter Storm Fuel Costs (a) | 33.5 | 60.1 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
60.1
monetaryItemType
table: <entity> 60.1 </entity> <entity type> monetaryItemType </entity type> <context> Unrecovered Winter Storm Fuel Costs (a) | 33.5 | 60.1 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
20.7
monetaryItemType
table: <entity> 20.7 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Pending Final Regulatory Approval | 20.7 | 49.8 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
49.8
monetaryItemType
table: <entity> 49.8 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Pending Final Regulatory Approval | 20.7 | 49.8 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
395.1
monetaryItemType
table: <entity> 395.1 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Earning a Return | 395.1 | 349.9 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
349.9
monetaryItemType
table: <entity> 349.9 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Earning a Return | 395.1 | 349.9 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
357.4
monetaryItemType
table: <entity> 357.4 </entity> <entity type> monetaryItemType </entity type> <context> Under-recovered Fuel Costs - earns a return | $ | 245.7 | $ | 357.4 | 1 year </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
25.9
monetaryItemType
table: <entity> 25.9 </entity> <entity type> monetaryItemType </entity type> <context> Plant Retirement Costs - Asset Retirement Obligation Costs (b) | 357.4 | 25.9 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
300.8
monetaryItemType
table: <entity> 300.8 </entity> <entity type> monetaryItemType </entity type> <context> Storm-Related Costs | 300.8 | 408.9 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
408.9
monetaryItemType
table: <entity> 408.9 </entity> <entity type> monetaryItemType </entity type> <context> Storm-Related Costs | 300.8 | 408.9 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
92.8
monetaryItemType
table: <entity> 92.8 </entity> <entity type> monetaryItemType </entity type> <context> NOLC - Costs (c) | 92.8 | β€” </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
78.4
monetaryItemType
table: <entity> 78.4 </entity> <entity type> monetaryItemType </entity type> <context> 2024-2025 Virginia Under-Earnings | 78.4 | β€” </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
86.3
monetaryItemType
table: <entity> 86.3 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Pending Final Regulatory Approval | 86.3 | 52.6 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
52.6
monetaryItemType
table: <entity> 52.6 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Pending Final Regulatory Approval | 86.3 | 52.6 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
915.7
monetaryItemType
table: <entity> 915.7 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Not Earning a Return | 915.7 | 487.4 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
487.4
monetaryItemType
table: <entity> 487.4 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Not Earning a Return | 915.7 | 487.4 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
1310.8
monetaryItemType
table: <entity> 1310.8 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Pending Final Regulatory Approval | 1,310.8 | 837.3 </context>
us-gaap:RegulatoryAssetsNoncurrent
<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></tr><tr><td></td><td></td><td>AEP</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery P...
table
837.3
monetaryItemType
table: <entity> 837.3 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Pending Final Regulatory Approval | 1,310.8 | 837.3 </context>
us-gaap:RegulatoryAssetsNoncurrent