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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></tr><tr><td>(for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></td><td>...
table
2649
monetaryItemType
table: <entity> 2649 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:CededPremiumsEarned
<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>(for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></td><td>...
table
2330
monetaryItemType
table: <entity> 2330 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:CededPremiumsEarned
<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>(for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></td><td>...
table
41941
monetaryItemType
table: <entity> 41941 </entity> <entity type> monetaryItemType </entity type> <context> Total net earned premiums | $ | 41,941 | $ | 37,761 | $ | 33,763 </context>
us-gaap:PremiumsEarnedNet
<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>(for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></td><td>...
table
37761
monetaryItemType
table: <entity> 37761 </entity> <entity type> monetaryItemType </entity type> <context> Total net earned premiums | $ | 41,941 | $ | 37,761 | $ | 33,763 </context>
us-gaap:PremiumsEarnedNet
<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>(for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></td><td>...
table
33763
monetaryItemType
table: <entity> 33763 </entity> <entity type> monetaryItemType </entity type> <context> Total net earned premiums | $ | 41,941 | $ | 37,761 | $ | 33,763 </context>
us-gaap:PremiumsEarnedNet
<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>(for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></td><td>...
table
5.0
percentItemType
table: <entity> 5.0 </entity> <entity type> percentItemType </entity type> <context> Percentage of assumed earned premiums to net earned premiums | 5.0 | % | 4.3 | % | 3.4 | % </context>
us-gaap:PremiumsPercentageAssumedToNet
<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>(for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></td><td>...
table
4.3
percentItemType
table: <entity> 4.3 </entity> <entity type> percentItemType </entity type> <context> Percentage of assumed earned premiums to net earned premiums | 5.0 | % | 4.3 | % | 3.4 | % </context>
us-gaap:PremiumsPercentageAssumedToNet
<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>(for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></td><td>...
table
3.4
percentItemType
table: <entity> 3.4 </entity> <entity type> percentItemType </entity type> <context> Percentage of assumed earned premiums to net earned premiums | 5.0 | % | 4.3 | % | 3.4 | % </context>
us-gaap:PremiumsPercentageAssumedToNet
<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>(for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></td><td>...
table
1249
monetaryItemType
table: <entity> 1249 </entity> <entity type> monetaryItemType </entity type> <context> Ceded claims and claim adjustment expenses incurred | $ | 1,249 | $ | 1,462 | $ | 1,187 </context>
us-gaap:ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded
<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>(for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></td><td>...
table
1462
monetaryItemType
table: <entity> 1462 </entity> <entity type> monetaryItemType </entity type> <context> Ceded claims and claim adjustment expenses incurred | $ | 1,249 | $ | 1,462 | $ | 1,187 </context>
us-gaap:ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded
<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>(for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></td><td>...
table
1187
monetaryItemType
table: <entity> 1187 </entity> <entity type> monetaryItemType </entity type> <context> Ceded claims and claim adjustment expenses incurred | $ | 1,249 | $ | 1,462 | $ | 1,187 </context>
us-gaap:ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Gross reinsurance recoverables on paid and unpaid claims and claim adj...
table
8119
monetaryItemType
table: <entity> 8119 </entity> <entity type> monetaryItemType </entity type> <context> Gross reinsurance recoverables | 8,119 | 8,261 </context>
us-gaap:ReinsuranceRecoverablesGross
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Gross reinsurance recoverables on paid and unpaid claims and claim adj...
table
8261
monetaryItemType
table: <entity> 8261 </entity> <entity type> monetaryItemType </entity type> <context> Gross reinsurance recoverables | 8,119 | 8,261 </context>
us-gaap:ReinsuranceRecoverablesGross
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Gross reinsurance recoverables on paid and unpaid claims and claim adj...
table
119
monetaryItemType
table: <entity> 119 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReinsuranceRecoverablesAllowance
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Gross reinsurance recoverables on paid and unpaid claims and claim adj...
table
118
monetaryItemType
table: <entity> 118 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ReinsuranceRecoverablesAllowance
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Gross reinsurance recoverables on paid and unpaid claims and claim adj...
table
8000
monetaryItemType
table: <entity> 8000 </entity> <entity type> monetaryItemType </entity type> <context> Net reinsurance recoverables | $ | 8,000 | $ | 8,143 </context>
us-gaap:ReinsuranceRecoverablesOnPaidAndUnpaidLosses
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Gross reinsurance recoverables on paid and unpaid claims and claim adj...
table
8143
monetaryItemType
table: <entity> 8143 </entity> <entity type> monetaryItemType </entity type> <context> Net reinsurance recoverables | $ | 8,000 | $ | 8,143 </context>
us-gaap:ReinsuranceRecoverablesOnPaidAndUnpaidLosses
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Business Insurance</td><td></td><td>$</td><td>2,572 </td><td></td><td>...
table
2572
monetaryItemType
table: <entity> 2572 </entity> <entity type> monetaryItemType </entity type> <context> Business Insurance | $ | 2,572 | $ | 2,585 </context>
us-gaap:Goodwill
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Business Insurance</td><td></td><td>$</td><td>2,572 </td><td></td><td>...
table
2585
monetaryItemType
table: <entity> 2585 </entity> <entity type> monetaryItemType </entity type> <context> Business Insurance | $ | 2,572 | $ | 2,585 </context>
us-gaap:Goodwill
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Business Insurance</td><td></td><td>$</td><td>2,572 </td><td></td><td>...
table
834
monetaryItemType
table: <entity> 834 </entity> <entity type> monetaryItemType </entity type> <context> Bond & Specialty Insurance (1) Bond & Specialty Insurance (1) | 834 | 550 </context>
us-gaap:Goodwill
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Business Insurance</td><td></td><td>$</td><td>2,572 </td><td></td><td>...
table
550
monetaryItemType
table: <entity> 550 </entity> <entity type> monetaryItemType </entity type> <context> Bond & Specialty Insurance (1) Bond & Specialty Insurance (1) | 834 | 550 </context>
us-gaap:Goodwill
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Business Insurance</td><td></td><td>$</td><td>2,572 </td><td></td><td>...
table
801
monetaryItemType
table: <entity> 801 </entity> <entity type> monetaryItemType </entity type> <context> Personal Insurance | 801 | 815 </context>
us-gaap:Goodwill
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Business Insurance</td><td></td><td>$</td><td>2,572 </td><td></td><td>...
table
815
monetaryItemType
table: <entity> 815 </entity> <entity type> monetaryItemType </entity type> <context> Personal Insurance | 801 | 815 </context>
us-gaap:Goodwill
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Business Insurance</td><td></td><td>$</td><td>2,572 </td><td></td><td>...
table
26
monetaryItemType
table: <entity> 26 </entity> <entity type> monetaryItemType </entity type> <context> Other | 26 | 26 </context>
us-gaap:Goodwill
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Business Insurance</td><td></td><td>$</td><td>2,572 </td><td></td><td>...
table
4233
monetaryItemType
table: <entity> 4233 </entity> <entity type> monetaryItemType </entity type> <context> Total | $ | 4,233 | $ | 3,976 </context>
us-gaap:Goodwill
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Business Insurance</td><td></td><td>$</td><td>2,572 </td><td></td><td>...
table
3976
monetaryItemType
table: <entity> 3976 </entity> <entity type> monetaryItemType </entity type> <context> Total | $ | 4,233 | $ | 3,976 </context>
us-gaap:Goodwill
<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>(at December 31, 2024, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
185
monetaryItemType
table: <entity> 185 </entity> <entity type> monetaryItemType </entity type> <context> Customer-related (1) Customer-related (1) | $ | 185 | $ | 74 | $ | 111 </context>
us-gaap:FiniteLivedIntangibleAssetsGross
<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>(at December 31, 2024, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
74
monetaryItemType
table: <entity> 74 </entity> <entity type> monetaryItemType </entity type> <context> Customer-related (1) Customer-related (1) | $ | 185 | $ | 74 | $ | 111 </context>
us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
<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>(at December 31, 2024, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
111
monetaryItemType
table: <entity> 111 </entity> <entity type> monetaryItemType </entity type> <context> Customer-related (1) Customer-related (1) | $ | 185 | $ | 74 | $ | 111 </context>
us-gaap:FiniteLivedIntangibleAssetsNet
<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>(at December 31, 2024, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
204
monetaryItemType
table: <entity> 204 </entity> <entity type> monetaryItemType </entity type> <context> Contract-based (2) Contract-based (2) | 204 | 196 | 8 </context>
us-gaap:FiniteLivedIntangibleAssetsGross
<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>(at December 31, 2024, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
196
monetaryItemType
table: <entity> 196 </entity> <entity type> monetaryItemType </entity type> <context> Contract-based (2) Contract-based (2) | 204 | 196 | 8 </context>
us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
<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>(at December 31, 2024, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
8
monetaryItemType
table: <entity> 8 </entity> <entity type> monetaryItemType </entity type> <context> Contract-based (2) Contract-based (2) | 204 | 196 | 8 </context>
us-gaap:FiniteLivedIntangibleAssetsNet
<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>(at December 31, 2024, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
18
monetaryItemType
table: <entity> 18 </entity> <entity type> monetaryItemType </entity type> <context> Marketing-related (3) Marketing-related (3) | 18 | 3 | 15 </context>
us-gaap:FiniteLivedIntangibleAssetsGross
<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>(at December 31, 2024, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
3
monetaryItemType
table: <entity> 3 </entity> <entity type> monetaryItemType </entity type> <context> Marketing-related (3) Marketing-related (3) | 18 | 3 | 15 </context>
us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
<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>(at December 31, 2024, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
15
monetaryItemType
table: <entity> 15 </entity> <entity type> monetaryItemType </entity type> <context> Marketing-related (3) Marketing-related (3) | 18 | 3 | 15 </context>
us-gaap:FiniteLivedIntangibleAssetsNet
<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>(at December 31, 2024, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
407
monetaryItemType
table: <entity> 407 </entity> <entity type> monetaryItemType </entity type> <context> Total subject to amortization | 407 | 273 | 134 </context>
us-gaap:FiniteLivedIntangibleAssetsGross
<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>(at December 31, 2024, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
273
monetaryItemType
table: <entity> 273 </entity> <entity type> monetaryItemType </entity type> <context> Total subject to amortization | 407 | 273 | 134 </context>
us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
<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>(at December 31, 2024, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
134
monetaryItemType
table: <entity> 134 </entity> <entity type> monetaryItemType </entity type> <context> Total subject to amortization | 407 | 273 | 134 </context>
us-gaap:FiniteLivedIntangibleAssetsNet
<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>(at December 31, 2024, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
226
monetaryItemType
table: <entity> 226 </entity> <entity type> monetaryItemType </entity type> <context> Not subject to amortization | 226 | — | 226 </context>
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill
<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>(at December 31, 2024, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
633
monetaryItemType
table: <entity> 633 </entity> <entity type> monetaryItemType </entity type> <context> Total | $ | 633 | $ | 273 | $ | 360 </context>
us-gaap:IntangibleAssetsGrossExcludingGoodwill
<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>(at December 31, 2024, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
360
monetaryItemType
table: <entity> 360 </entity> <entity type> monetaryItemType </entity type> <context> Total | $ | 633 | $ | 273 | $ | 360 </context>
us-gaap:IntangibleAssetsNetExcludingGoodwill
<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>(at December 31, 2023, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
100
monetaryItemType
table: <entity> 100 </entity> <entity type> monetaryItemType </entity type> <context> Customer-related | $ | 100 | $ | 59 | $ | 41 </context>
us-gaap:FiniteLivedIntangibleAssetsGross
<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>(at December 31, 2023, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
59
monetaryItemType
table: <entity> 59 </entity> <entity type> monetaryItemType </entity type> <context> Customer-related | $ | 100 | $ | 59 | $ | 41 </context>
us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
<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>(at December 31, 2023, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
41
monetaryItemType
table: <entity> 41 </entity> <entity type> monetaryItemType </entity type> <context> Customer-related | $ | 100 | $ | 59 | $ | 41 </context>
us-gaap:FiniteLivedIntangibleAssetsNet
<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>(at December 31, 2023, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
204
monetaryItemType
table: <entity> 204 </entity> <entity type> monetaryItemType </entity type> <context> Contract-based (2) Contract-based (2) | 204 | 194 | 10 </context>
us-gaap:FiniteLivedIntangibleAssetsGross
<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>(at December 31, 2023, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
194
monetaryItemType
table: <entity> 194 </entity> <entity type> monetaryItemType </entity type> <context> Contract-based (2) Contract-based (2) | 204 | 194 | 10 </context>
us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
<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>(at December 31, 2023, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
10
monetaryItemType
table: <entity> 10 </entity> <entity type> monetaryItemType </entity type> <context> Contract-based (2) Contract-based (2) | 204 | 194 | 10 </context>
us-gaap:FiniteLivedIntangibleAssetsNet
<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>(at December 31, 2023, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
304
monetaryItemType
table: <entity> 304 </entity> <entity type> monetaryItemType </entity type> <context> Total subject to amortization | 304 | 253 | 51 </context>
us-gaap:FiniteLivedIntangibleAssetsGross
<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>(at December 31, 2023, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
253
monetaryItemType
table: <entity> 253 </entity> <entity type> monetaryItemType </entity type> <context> Total subject to amortization | 304 | 253 | 51 </context>
us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
<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>(at December 31, 2023, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
51
monetaryItemType
table: <entity> 51 </entity> <entity type> monetaryItemType </entity type> <context> Total subject to amortization | 304 | 253 | 51 </context>
us-gaap:FiniteLivedIntangibleAssetsNet
<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>(at December 31, 2023, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
226
monetaryItemType
table: <entity> 226 </entity> <entity type> monetaryItemType </entity type> <context> Not subject to amortization | 226 | — | 226 </context>
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill
<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>(at December 31, 2023, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
530
monetaryItemType
table: <entity> 530 </entity> <entity type> monetaryItemType </entity type> <context> Total | $ | 530 | $ | 253 | $ | 277 </context>
us-gaap:IntangibleAssetsGrossExcludingGoodwill
<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>(at December 31, 2023, in millions)</td><td></td><td>Gross Carrying Amount</td><td></td><td>Accumulated Amo...
table
277
monetaryItemType
table: <entity> 277 </entity> <entity type> monetaryItemType </entity type> <context> Total | $ | 530 | $ | 253 | $ | 277 </context>
us-gaap:IntangibleAssetsNetExcludingGoodwill
<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></tr><tr><td>(in millions)</td><td></td><td>Amount</td><td></td><td>Weighted Average Amortization Period</td></tr><tr><td>Subject to amortization</td><td></td><td></td><td></...
table
87
monetaryItemType
table: <entity> 87 </entity> <entity type> monetaryItemType </entity type> <context> Customer-related | $ | 87 | 14 years </context>
us-gaap:FinitelivedIntangibleAssetsAcquired1
<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></tr><tr><td>(in millions)</td><td></td><td>Amount</td><td></td><td>Weighted Average Amortization Period</td></tr><tr><td>Subject to amortization</td><td></td><td></td><td></...
table
18
monetaryItemType
table: <entity> 18 </entity> <entity type> monetaryItemType </entity type> <context> Marketing-related | 18 | 7 years </context>
us-gaap:FinitelivedIntangibleAssetsAcquired1
<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></tr><tr><td>(in millions)</td><td></td><td>Amount</td><td></td><td>Weighted Average Amortization Period</td></tr><tr><td>Subject to amortization</td><td></td><td></td><td></...
table
105
monetaryItemType
table: <entity> 105 </entity> <entity type> monetaryItemType </entity type> <context> Total | $ | 105 | 13 years </context>
us-gaap:FinitelivedIntangibleAssetsAcquired1
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Property-casualty</td><td></td><td>$</td><td>64,088 </td><td></td><td>...
table
64088
monetaryItemType
table: <entity> 64088 </entity> <entity type> monetaryItemType </entity type> <context> Property-casualty | $ | 64,088 | $ | 61,621 </context>
us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Property-casualty</td><td></td><td>$</td><td>64,088 </td><td></td><td>...
table
61621
monetaryItemType
table: <entity> 61621 </entity> <entity type> monetaryItemType </entity type> <context> Property-casualty | $ | 64,088 | $ | 61,621 </context>
us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Property-casualty</td><td></td><td>$</td><td>64,088 </td><td></td><td>...
table
5
monetaryItemType
table: <entity> 5 </entity> <entity type> monetaryItemType </entity type> <context> Accident and health | 5 | 6 </context>
us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Property-casualty</td><td></td><td>$</td><td>64,088 </td><td></td><td>...
table
6
monetaryItemType
table: <entity> 6 </entity> <entity type> monetaryItemType </entity type> <context> Accident and health | 5 | 6 </context>
us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Property-casualty</td><td></td><td>$</td><td>64,088 </td><td></td><td>...
table
64093
monetaryItemType
table: <entity> 64093 </entity> <entity type> monetaryItemType </entity type> <context> Total | $ | 64,093 | $ | 61,627 </context>
us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense
<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></tr><tr><td>(at December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>Property-casualty</td><td></td><td>$</td><td>64,088 </td><td></td><td>...
table
61627
monetaryItemType
table: <entity> 61627 </entity> <entity type> monetaryItemType </entity type> <context> Total | $ | 64,093 | $ | 61,627 </context>
us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
61621
monetaryItemType
table: <entity> 61621 </entity> <entity type> monetaryItemType </entity type> <context> Claims and claim adjustment expense reserves at beginning of year | $ | 61,621 | $ | 58,643 | $ | 56,897 </context>
us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
58643
monetaryItemType
table: <entity> 58643 </entity> <entity type> monetaryItemType </entity type> <context> Claims and claim adjustment expense reserves at beginning of year | $ | 61,621 | $ | 58,643 | $ | 56,897 </context>
us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
56897
monetaryItemType
table: <entity> 56897 </entity> <entity type> monetaryItemType </entity type> <context> Claims and claim adjustment expense reserves at beginning of year | $ | 61,621 | $ | 58,643 | $ | 56,897 </context>
us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
7817
monetaryItemType
table: <entity> 7817 </entity> <entity type> monetaryItemType </entity type> <context> Less reinsurance recoverables on unpaid losses | 7,817 | 7,790 | 8,209 </context>
us-gaap:ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
7790
monetaryItemType
table: <entity> 7790 </entity> <entity type> monetaryItemType </entity type> <context> Less reinsurance recoverables on unpaid losses | 7,817 | 7,790 | 8,209 </context>
us-gaap:ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
8209
monetaryItemType
table: <entity> 8209 </entity> <entity type> monetaryItemType </entity type> <context> Less reinsurance recoverables on unpaid losses | 7,817 | 7,790 | 8,209 </context>
us-gaap:ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
53804
monetaryItemType
table: <entity> 53804 </entity> <entity type> monetaryItemType </entity type> <context> Net reserves at beginning of year | 53,804 | 50,853 | 48,688 </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
50853
monetaryItemType
table: <entity> 50853 </entity> <entity type> monetaryItemType </entity type> <context> Net reserves at beginning of year | 53,804 | 50,853 | 48,688 </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
48688
monetaryItemType
table: <entity> 48688 </entity> <entity type> monetaryItemType </entity type> <context> Net reserves at beginning of year | 53,804 | 50,853 | 48,688 </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
27508
monetaryItemType
table: <entity> 27508 </entity> <entity type> monetaryItemType </entity type> <context> Estimated claims and claim adjustment expenses for claims arising in the current year Estimated claims and claim adjustment expenses for claims arising in the current year | 27,508 | 26,159 | 23,308 </context>
us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
26159
monetaryItemType
table: <entity> 26159 </entity> <entity type> monetaryItemType </entity type> <context> Estimated claims and claim adjustment expenses for claims arising in the current year Estimated claims and claim adjustment expenses for claims arising in the current year | 27,508 | 26,159 | 23,308 </context>
us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
23308
monetaryItemType
table: <entity> 23308 </entity> <entity type> monetaryItemType </entity type> <context> Estimated claims and claim adjustment expenses for claims arising in the current year Estimated claims and claim adjustment expenses for claims arising in the current year | 27,508 | 26,159 | 23,308 </context>
us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
548
monetaryItemType
table: <entity> 548 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
38
monetaryItemType
table: <entity> 38 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
537
monetaryItemType
table: <entity> 537 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
26960
monetaryItemType
table: <entity> 26960 </entity> <entity type> monetaryItemType </entity type> <context> Total increases | 26,960 | 26,121 | 22,771 </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
26121
monetaryItemType
table: <entity> 26121 </entity> <entity type> monetaryItemType </entity type> <context> Total increases | 26,960 | 26,121 | 22,771 </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
22771
monetaryItemType
table: <entity> 22771 </entity> <entity type> monetaryItemType </entity type> <context> Total increases | 26,960 | 26,121 | 22,771 </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
10924
monetaryItemType
table: <entity> 10924 </entity> <entity type> monetaryItemType </entity type> <context> Current year | 10,924 | 10,852 | 9,406 </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
10852
monetaryItemType
table: <entity> 10852 </entity> <entity type> monetaryItemType </entity type> <context> Current year | 10,924 | 10,852 | 9,406 </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
9406
monetaryItemType
table: <entity> 9406 </entity> <entity type> monetaryItemType </entity type> <context> Current year | 10,924 | 10,852 | 9,406 </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
13227
monetaryItemType
table: <entity> 13227 </entity> <entity type> monetaryItemType </entity type> <context> Prior years | 13,227 | 12,424 | 10,945 </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
12424
monetaryItemType
table: <entity> 12424 </entity> <entity type> monetaryItemType </entity type> <context> Prior years | 13,227 | 12,424 | 10,945 </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
10945
monetaryItemType
table: <entity> 10945 </entity> <entity type> monetaryItemType </entity type> <context> Prior years | 13,227 | 12,424 | 10,945 </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
24151
monetaryItemType
table: <entity> 24151 </entity> <entity type> monetaryItemType </entity type> <context> Total payments | 24,151 | 23,276 | 20,351 </context>
us-gaap:PaymentsForLossesAndLossAdjustmentExpense
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
23276
monetaryItemType
table: <entity> 23276 </entity> <entity type> monetaryItemType </entity type> <context> Total payments | 24,151 | 23,276 | 20,351 </context>
us-gaap:PaymentsForLossesAndLossAdjustmentExpense
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
20351
monetaryItemType
table: <entity> 20351 </entity> <entity type> monetaryItemType </entity type> <context> Total payments | 24,151 | 23,276 | 20,351 </context>
us-gaap:PaymentsForLossesAndLossAdjustmentExpense
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
194
monetaryItemType
table: <entity> 194 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyTranslationGainLoss
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
106
monetaryItemType
table: <entity> 106 </entity> <entity type> monetaryItemType </entity type> <context> Unrealized foreign exchange (gain) loss | ( 194 ) | 106 | ( 255 ) </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyTranslationGainLoss
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
255
monetaryItemType
table: <entity> 255 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyTranslationGainLoss
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
56419
monetaryItemType
table: <entity> 56419 </entity> <entity type> monetaryItemType </entity type> <context> Net reserves at end of year | 56,419 | 53,804 | 50,853 </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
7669
monetaryItemType
table: <entity> 7669 </entity> <entity type> monetaryItemType </entity type> <context> Plus reinsurance recoverables on unpaid losses | 7,669 | 7,817 | 7,790 </context>
us-gaap:ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments
<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>(at and for the year ended December 31, in millions)</td><td></td><td>2024</td><td></td><td>2023</td><td></...
table
64088
monetaryItemType
table: <entity> 64088 </entity> <entity type> monetaryItemType </entity type> <context> Claims and claim adjustment expense reserves at end of year | $ | 64,088 | $ | 61,621 | $ | 58,643 </context>
us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense
<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></tr><tr><td...
table
11100
monetaryItemType
table: <entity> 11100 </entity> <entity type> monetaryItemType </entity type> <context> General liability | $ | 11,100 | $ | ( 124 ) | $ | 10,976 | $ | 1,140 | $ | 12,116 </context>
us-gaap:ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNet
<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></tr><tr><td...
table
10976
monetaryItemType
table: <entity> 10976 </entity> <entity type> monetaryItemType </entity type> <context> General liability | $ | 11,100 | $ | ( 124 ) | $ | 10,976 | $ | 1,140 | $ | 12,116 </context>
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet
<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></tr><tr><td...
table
1140
monetaryItemType
table: <entity> 1140 </entity> <entity type> monetaryItemType </entity type> <context> General liability | $ | 11,100 | $ | ( 124 ) | $ | 10,976 | $ | 1,140 | $ | 12,116 </context>
us-gaap:ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments
<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></tr><tr><td...
table
12116
monetaryItemType
table: <entity> 12116 </entity> <entity type> monetaryItemType </entity type> <context> General liability | $ | 11,100 | $ | ( 124 ) | $ | 10,976 | $ | 1,140 | $ | 12,116 </context>
us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense
<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></tr><tr><td...
table
1266
monetaryItemType
table: <entity> 1266 </entity> <entity type> monetaryItemType </entity type> <context> Commercial property | 1,266 | — | 1,266 | 358 | 1,624 </context>
us-gaap:ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNet