v3.26.1
Equity (Components 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
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance $ 27,595 $ 27,755 $ 28,680 $ 27,703
Ending Balance 27,741 27,927 27,741 27,927
Cumulative Effect, Period of Adoption, Adjustment        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance       (1,074)
Accumulated Other Comprehensive Income (Loss)        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance (19,227) (20,248) (18,084) (21,186)
OCI before reclassifications 395 1,353 (1,547) 4,015
Deferred income tax benefit (expense) (153) (186) 266 (744)
AOCI before reclassifications, net of income tax (18,985) (19,081) (19,365) (18,989)
Amounts reclassified from AOCI 314 (980) 810 (1,087)
Deferred income tax benefit (expense) (72) 202 (188) 217
Amounts reclassified from AOCI, net of income tax 242 (778) 622 (870)
Ending Balance (18,743) (19,859) (18,743) (19,859)
Accumulated Other Comprehensive Income (Loss) | Cumulative Effect, Period of Adoption, Adjustment        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance       (1,074)
Unrealized Investment Gains (Losses), Net of Related Offsets        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance (19,380) (17,329) (15,614) (19,402)
OCI before reclassifications 626 908 (4,472) 3,112
Deferred income tax benefit (expense) (48) (142) 1,116 (530)
AOCI before reclassifications, net of income tax (18,802) (16,563) (18,970) (16,750)
Amounts reclassified from AOCI 161 100 387 341
Deferred income tax benefit (expense) (36) (21) (94) (75)
Amounts reclassified from AOCI, net of income tax 125 79 293 266
Ending Balance (18,677) (16,484) (18,677) (16,484)
Unrealized Investment Gains (Losses), Net of Related Offsets | Cumulative Effect, Period of Adoption, Adjustment        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance       70
Unrealized Gains (Losses) on Derivatives        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance (1,015) 179 (1,588) 370
OCI before reclassifications (518) (1,028) (19) (811)
Deferred income tax benefit (expense) 109 256 (10) 151
AOCI before reclassifications, net of income tax (1,424) (593) (1,617) (290)
Amounts reclassified from AOCI 131 (1,102) 377 (1,481)
Deferred income tax benefit (expense) (32) 229 (85) 305
Amounts reclassified from AOCI, net of income tax 99 (873) 292 (1,176)
Ending Balance (1,325) (1,466) (1,325) (1,466)
Unrealized Gains (Losses) on Derivatives | Cumulative Effect, Period of Adoption, Adjustment        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance       0
FPBs Discount Rate Remeasurement Gains (Losses)        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance 9,001 5,334 6,871 6,529
OCI before reclassifications 281 884 3,003 932
Deferred income tax benefit (expense) (218) (342) (810) (441)
AOCI before reclassifications, net of income tax 9,064 5,876 9,064 5,876
Amounts reclassified from AOCI 0 0 0 0
Deferred income tax benefit (expense) 0 0 0 0
Amounts reclassified from AOCI, net of income tax 0 0 0 0
Ending Balance 9,064 5,876 9,064 5,876
FPBs Discount Rate Remeasurement Gains (Losses) | Cumulative Effect, Period of Adoption, Adjustment        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance       (1,144)
MRBs Instrument- Specific Credit Risk Remeasurement Gains (Losses)        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance (56) (31) (97) (71)
OCI before reclassifications (30) (42) 22 9
Deferred income tax benefit (expense) 6 9 (5) (2)
AOCI before reclassifications, net of income tax (80) (64) (80) (64)
Amounts reclassified from AOCI 0 0 0 0
Deferred income tax benefit (expense) 0 0 0 0
Amounts reclassified from AOCI, net of income tax 0 0 0 0
Ending Balance (80) (64) (80) (64)
MRBs Instrument- Specific Credit Risk Remeasurement Gains (Losses) | Cumulative Effect, Period of Adoption, Adjustment        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance       0
Foreign Currency Translation Adjustments        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance (6,403) (6,985) (6,263) (7,170)
OCI before reclassifications 37 640 (80) 780
Deferred income tax benefit (expense) (2) 31 (25) 76
AOCI before reclassifications, net of income tax (6,368) (6,314) (6,368) (6,314)
Amounts reclassified from AOCI 0 0 0 0
Deferred income tax benefit (expense) 0 0 0 0
Amounts reclassified from AOCI, net of income tax 0 0 0 0
Ending Balance (6,368) (6,314) (6,368) (6,314)
Foreign Currency Translation Adjustments | Cumulative Effect, Period of Adoption, Adjustment        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance       0
Defined Benefit Plans Adjustment        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance (1,374) (1,416) (1,393) (1,442)
OCI before reclassifications (1) (9) (1) (7)
Deferred income tax benefit (expense) 0 2 0 2
AOCI before reclassifications, net of income tax (1,375) (1,423) (1,394) (1,447)
Amounts reclassified from AOCI 22 22 46 53
Deferred income tax benefit (expense) (4) (6) (9) (13)
Amounts reclassified from AOCI, net of income tax 18 16 37 40
Ending Balance $ (1,357) $ (1,407) $ (1,357) (1,407)
Defined Benefit Plans Adjustment | Cumulative Effect, Period of Adoption, Adjustment        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance       $ 0