v3.26.3
Deferred Policy Acquisition Costs - Rollforward of deferred policy acquisition costs (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Long-Duration Insurance Contracts    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year $ 8,875 $ 10,281
Capitalization 912 1,057
Amortization expense (758) (802)
Other adjustments and Other, including foreign exchange (163) (1,739)
Balance, end of year 8,866 8,797
Long-Duration Insurance Contracts | Individual Retirement    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year 3,378 3,020
Capitalization 516 644
Amortization expense (412) (347)
Other adjustments and Other, including foreign exchange 0 0
Balance, end of year 3,482 3,317
Long-Duration Insurance Contracts | Group Retirement    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year 1,053 1,049
Capitalization 67 69
Amortization expense (84) (65)
Other adjustments and Other, including foreign exchange 0 0
Balance, end of year 1,036 1,053
Long-Duration Insurance Contracts | Life Insurance    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year 4,162 4,127
Capitalization 294 274
Amortization expense (246) (252)
Other adjustments and Other, including foreign exchange 0 0
Balance, end of year 4,210 4,149
Long-Duration Insurance Contracts | Institutional Markets    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year 118 95
Capitalization 36 28
Amortization expense (16) (12)
Other adjustments and Other, including foreign exchange 0 0
Balance, end of year 138 111
Long-Duration Insurance Contracts | Corporate & Other    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, beginning of year 164 1,990
Capitalization (1) 42
Amortization expense 0 (126)
Other adjustments and Other, including foreign exchange (163) (1,739)
Balance, end of year 0 167
Value Of Business Acquired    
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]    
Balance, end of year $ 8 $ 11