v3.26.1
Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Balance at beginning of period $ 75,382 $ 75,730
Other comprehensive income (loss) (205) 179
Balance at end of period 77,637 77,110
Gains expected to be reclassified 16  
AOCI Including Portion Attributable to Noncontrolling Interest    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Balance at beginning of period 406 (120)
Balance at end of period 201 59
Net unrealized investment gains (losses):    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Balance at beginning of period 206 (399)
Other comprehensive income (loss) before reclassifications, net of tax (254) 187
Amounts reclassified from accumulated other comprehensive income (loss), net of tax 10 29
Other comprehensive income (loss) (244) 216
Balance at end of period (38) (183)
Other comprehensive income (loss) before reclassifications, pretax (328) 188
Amounts reclassified from accumulated other comprehensive income (loss), pretax 13 32
Change in discount rate on long-duration insurance reserves:    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Balance at beginning of period 215 265
Other comprehensive income (loss) before reclassifications, net of tax 43 (33)
Other comprehensive income (loss) 43 (33)
Balance at end of period 258 232
Other comprehensive income (loss) before reclassifications, pretax 54 (41)
Foreign currency translation adjustments:    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Balance at beginning of period 7 (4)
Other comprehensive income (loss) 0 0
Balance at end of period 7 (4)
Net cash flow hedges:    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Balance at beginning of period 216 229
Amounts reclassified from accumulated other comprehensive income (loss), net of tax (4) (4)
Other comprehensive income (loss) (4) (4)
Balance at end of period 212 225
Amounts reclassified from accumulated other comprehensive income (loss), pretax (5) (6)
Pension and other postretirement benefits:    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Balance at beginning of period (238) (211)
Other comprehensive income (loss) 0 0
Balance at end of period $ (238) $ (211)