v3.26.3
Equity - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance $ 34,805 $ 29,204 $ 35,638 $ 25,874
Other comprehensive income (loss), before reclassifications, before tax (6,105) 1,659 (6,730) 4,038
Reclassification adjustments for gains (losses) realized in net income (14) (83) 469 (335)
Income tax expense related to other comprehensive income (loss) (1,228) 356 (1,446) 889
Less: Other comprehensive income (loss) attributable to noncontrolling interests, net of tax (1,035) 184 (1,353) 505
Ending Balance 29,144 33,041 29,144 33,041
AOCI, Gain (Loss), Debt Securities, Available-for-Sale, without Allowance for Credit Loss, Parent        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance (7,390) (7,381) (6,372) (9,171)
Ending Balance (12,353) (6,080) (12,353) (6,080)
AOCI, Gain (Loss), Debt Securities, Available-for-sale, with Allowance for Credit Loss, Including Noncontrolling Interest        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Other comprehensive income (loss), before reclassifications, before tax (8,102) 1,964 (9,407) 4,560
Reclassification adjustments for gains (losses) realized in net income (13) (90) 468 (358)
Income tax expense related to other comprehensive income (loss) (1,640) 424 (2,000) 1,004
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Noncontrolling Interest        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Less: Other comprehensive income (loss) attributable to noncontrolling interests, net of tax (1,486) 329 (1,894) 823
AOCI, Gain (Loss), Debt Securities, Available-for-sale, with Allowance for Credit Loss, Parent        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance (197) (270) (252) (284)
Ending Balance (246) (267) (246) (267)
AOCI, Gain (Loss), Debt Securities, Available-for-sale, with Allowance for Credit Loss, Including Noncontrolling Interest        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Other comprehensive income (loss), before reclassifications, before tax (73) 4 (25) 25
Reclassification adjustments for gains (losses) realized in net income (1) (1) (14) (4)
Income tax expense related to other comprehensive income (loss) (14) 1 (2) 6
AOCI, Accumulated Gain (Loss), Debt Securities, with credit allowance, portion attributable to NCI        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Less: Other comprehensive income (loss) attributable to noncontrolling interests, net of tax (9) 1 (15) 6
AOCI, Liability for Future Policy Benefit, Parent        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance 4,533 4,043 4,137 4,235
Ending Balance 5,909 4,004 5,909 4,004
Accumulated Other Comprehensive Income (Loss), Derivative Qualifying as Hedge, Excluded Component, Including Portion Attributable to Noncontrolling Interest        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Other comprehensive income (loss), before reclassifications, before tax (506) 75 (597) 315
Reclassification adjustments for gains (losses) realized in net income 0 8 15 27
Income tax expense related to other comprehensive income (loss) (107) 14 (129) 60
AOCI, Market Risk Benefit, Instrument-Specific Credit Risk, Parent [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance (145) (115) (169) (103)
Ending Balance (100) (187) (100) (187)
AOCI, Derivative Qualifying as Hedge, Excluded Component, Parent        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance (30) (27) (18) (120)
Ending Balance (259) 10 (259) 10
Accumulated Foreign Currency Adjustment Attributable to Parent        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance 16 62 33 (22)
Ending Balance 8 34 8 34
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Other comprehensive income (loss), before reclassifications, before tax (11) (36) (34) 78
Reclassification adjustments for gains (losses) realized in net income 0 0 0 0
Income tax expense related to other comprehensive income (loss) (2) (7) (6) 15
AOCI, Derivative Qualifying as Hedge, Excluded Component, Noncontrolling Interest        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Less: Other comprehensive income (loss) attributable to noncontrolling interests, net of tax (170) 16 (242) 98
AOCI, Liability for Future Policy Benefit, Noncontrolling Interest        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Less: Other comprehensive income (loss) attributable to noncontrolling interests, net of tax 621 (144) 787 (409)
AOCI, Market Risk Benefit, Instrument-Specific Credit Risk, Noncontrolling Interest        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Less: Other comprehensive income (loss) attributable to noncontrolling interests, net of tax 10 (17) 14 (20)
Accumulated Foreign Currency Adjustment Attributable to Noncontrolling Interest        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Less: Other comprehensive income (loss) attributable to noncontrolling interests, net of tax (1) (1) (3) 7
AOCI, Liability for Future Policy Benefit, Including portion attributable to Noncontrolling Interest        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Other comprehensive income (loss), before reclassifications, before tax 2,518 (235) 3,228 (808)
Reclassification adjustments for gains (losses) realized in net income 0 0 0 0
Income tax expense related to other comprehensive income (loss) 521 (52) 669 (168)
AOCI, Market Risk Benefit, Instrument-Specific Credit Risk, Including        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Other comprehensive income (loss), before reclassifications, before tax 69 (113) 105 (132)
Reclassification adjustments for gains (losses) realized in net income 0 0 0 0
Income tax expense related to other comprehensive income (loss) 14 (24) 22 (28)
Accumulated other comprehensive income (loss)        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance (3,213) (3,688) (2,641) (5,465)
Ending Balance $ (7,041) $ (2,486) $ (7,041) $ (2,486)