Equity (Components of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	$ 27,755	$ 28,796	$ 27,703	$ 30,253
Ending Balance	27,927	27,540	27,927	27,540
Cumulative Effect, Period of Adoption, Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance			(1,074)	(219)
Accumulated Other Comprehensive Income (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(20,248)	(19,771)	(21,186)	(19,242)
OCI before reclassifications	1,353	(1,463)	4,015	(2,525)
Deferred income tax benefit (expense)	(186)	354	(744)	463
AOCI before reclassifications, net of income tax	(19,081)	(20,880)	(18,989)	(21,304)
Amounts reclassified from AOCI	(980)	283	(1,087)	817
Deferred income tax benefit (expense)	202	(139)	217	(249)
Amounts reclassified from AOCI, net of income tax	(778)	144	(870)	568
Ending Balance	(19,859)	(20,736)	(19,859)	(20,736)
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	(17,329)	(16,813)	(19,402)	(14,506)
OCI before reclassifications	908	(3,373)	3,112	(6,492)
Deferred income tax benefit (expense)	(142)	810	(530)	1,509
AOCI before reclassifications, net of income tax	(16,563)	(19,376)	(16,750)	(19,489)
Amounts reclassified from AOCI	100	248	341	393
Deferred income tax benefit (expense)	(21)	(59)	(75)	(91)
Amounts reclassified from AOCI, net of income tax	79	189	266	302
Ending Balance	(16,484)	(19,187)	(16,484)	(19,187)
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	179	202	370	183
OCI before reclassifications	(1,028)	(160)	(811)	(501)
Deferred income tax benefit (expense)	256	128	151	204
AOCI before reclassifications, net of income tax	(593)	170	(290)	(114)
Amounts reclassified from AOCI	(1,102)	3	(1,481)	360
Deferred income tax benefit (expense)	229	(74)	305	(147)
Amounts reclassified from AOCI, net of income tax	(873)	(71)	(1,176)	213
Ending Balance	(1,466)	99	(1,466)	99
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	5,334	4,773	6,529	2,658
OCI before reclassifications	884	2,373	932	5,084
Deferred income tax benefit (expense)	(342)	(540)	(441)	(1,136)
AOCI before reclassifications, net of income tax	5,876	6,606	5,876	6,606
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	5,876	6,606	5,876	6,606
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	(31)	(47)	(71)	27
OCI before reclassifications	(42)	(33)	9	(127)
Deferred income tax benefit (expense)	9	7	(2)	27
AOCI before reclassifications, net of income tax	(64)	(73)	(64)	(73)
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	(64)	(73)	(64)	(73)
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	(6,985)	(6,465)	(7,170)	(6,158)
OCI before reclassifications	640	(268)	780	(485)
Deferred income tax benefit (expense)	31	(52)	76	(142)
AOCI before reclassifications, net of income tax	(6,314)	(6,785)	(6,314)	(6,785)
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	(6,314)	(6,785)	(6,314)	(6,785)
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	(1,416)	(1,421)	(1,442)	(1,446)
OCI before reclassifications	(9)	(2)	(7)	(4)
Deferred income tax benefit (expense)	2	1	2	1
AOCI before reclassifications, net of income tax	(1,423)	(1,422)	(1,447)	(1,449)
Amounts reclassified from AOCI	22	32	53	64
Deferred income tax benefit (expense)	(6)	(6)	(13)	(11)
Amounts reclassified from AOCI, net of income tax	16	26	40	53
Ending Balance	$ (1,407)	$ (1,396)	(1,407)	$ (1,396)
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