v3.26.1
Equity (Reclassifications Out of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Net investment gains (losses) $ (6) $ (39) $ (58) $ (122)
Net derivative gains (losses) (477) (1,237) (986) (926)
Net investment income 1,241 1,285 2,499 2,582
Pre-tax adjusted earnings (loss) 1,226 93 240 (261)
Income tax (expense) benefit (245) (8) (23) 80
Net income (loss) 956 60 164 (234)
Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Net income (loss) (2) (7) (24) (27)
Reclassification out of Accumulated Other Comprehensive Income | Net unrealized investment gains (losses)        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Net investment gains (losses) (3) (12) (26) (37)
Net derivative gains (losses) (3) 4 (5) (2)
Pre-tax adjusted earnings (loss) (6) (8) (31) (39)
Income tax (expense) benefit 2 1 7 8
Net income (loss) (4) (7) (24) (31)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains (Losses) on Derivatives        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Pre-tax adjusted earnings (loss) 4 0 3 7
Income tax (expense) benefit (1) 0 (1) (1)
Net income (loss) 3 0 2 6
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains (Losses) on Derivatives | Interest rate swaps        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Net derivative gains (losses) 1 0 1 3
Net investment income 0 0 1 1
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains (Losses) on Derivatives | Foreign currency swaps        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Net derivative gains (losses) 3 0 1 3
Reclassification out of Accumulated Other Comprehensive Income | Defined benefit plans adjustment        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Pre-tax adjusted earnings (loss) (2) (1) (3) (3)
Income tax (expense) benefit 1 1 1 1
Amortization of net actuarial gains (losses) (2) (1) (3) (3)
Amortization of defined benefit plans, net of income tax $ (1) $ 0 $ (2) $ (2)