v3.26.1
Deferred Policy Acquisition Costs - Rollforward of deferred policy acquisition costs (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Long-Duration Insurance Contracts    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year $ 8,875 $ 10,281
Capitalization 309 310
Amortization expense (245) (275)
Other adjustments and Other, including foreign exchange (164) 0
Balance, end of year 8,775 10,316
Long-Duration Insurance Contracts | Individual Retirement    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year 3,378 3,020
Capitalization 183 174
Amortization expense (130) (111)
Other adjustments and Other, including foreign exchange 0 0
Balance, end of year 3,431 3,083
Long-Duration Insurance Contracts | Group Retirement    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year 1,053 1,049
Capitalization 23 19
Amortization expense (27) (22)
Other adjustments and Other, including foreign exchange 0 0
Balance, end of year 1,049 1,046
Long-Duration Insurance Contracts | Life Insurance    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year 4,162 4,127
Capitalization 95 90
Amortization expense (83) (85)
Other adjustments and Other, including foreign exchange 0 0
Balance, end of year 4,174 4,132
Long-Duration Insurance Contracts | Institutional Markets    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year 118 95
Capitalization 8 8
Amortization expense (5) (4)
Other adjustments and Other, including foreign exchange 0 0
Balance, end of year 121 99
Long-Duration Insurance Contracts | Corporate & Other    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year 164 1,990
Capitalization 0 19
Amortization expense 0 (53)
Other adjustments and Other, including foreign exchange (164) 0
Balance, end of year 0 1,956
Value Of Business Acquired    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, end of year $ 10 $ 12