v3.26.1
Deferred Policy Acquisition Costs - Rollforward of deferred policy acquisition costs (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Long-Duration Insurance Contracts    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year $ 8,875 $ 10,281
Capitalization 608 692
Amortization expense (492) (549)
Other adjustments and Other, including foreign exchange (164) 0
Balance, end of year 8,827 10,424
Long-Duration Insurance Contracts | Individual Retirement    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year 3,378 3,020
Capitalization 343 417
Amortization expense (260) (224)
Other adjustments and Other, including foreign exchange 0 0
Balance, end of year 3,461 3,213
Long-Duration Insurance Contracts | Group Retirement    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year 1,053 1,049
Capitalization 43 42
Amortization expense (55) (43)
Other adjustments and Other, including foreign exchange 0 0
Balance, end of year 1,041 1,048
Long-Duration Insurance Contracts | Life Insurance    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year 4,162 4,127
Capitalization 193 183
Amortization expense (166) (168)
Other adjustments and Other, including foreign exchange 0 0
Balance, end of year 4,189 4,142
Long-Duration Insurance Contracts | Institutional Markets    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year 118 95
Capitalization 29 14
Amortization expense (11) (8)
Other adjustments and Other, including foreign exchange 0 0
Balance, end of year 136 101
Long-Duration Insurance Contracts | Corporate & Other    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year 164 1,990
Capitalization 0 36
Amortization expense 0 (106)
Other adjustments and Other, including foreign exchange (164) 0
Balance, end of year 0 1,920
Value Of Business Acquired    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, end of year $ 9 $ 11