Equity - Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	$ 30,253	$ 30,125	$ 50,013
Ending Balance	27,703	30,253	30,125
Accumulated Other Comprehensive Income (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(19,242)	(22,621)	(2,451)
OCI before reclassifications	(3,937)	2,340	(28,577)
Deferred income tax benefit (expense)	730	(505)	6,261
AOCI before reclassifications, net of income tax	(22,449)	(20,786)	(24,767)
Amounts reclassified from AOCI	1,640	1,937	2,198
Deferred income tax benefit (expense)	(377)	(393)	(463)
Amounts reclassified from AOCI, net of income tax	1,263	1,544	1,735
Ending Balance	(21,186)	(19,242)	(22,621)
Unrealized Investment Gains (Losses), Net of Related Offsets
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(14,506)	(22,646)	20,919
OCI before reclassifications	(7,280)	7,820	(58,093)
Deferred income tax benefit (expense)	1,809	(1,666)	13,298
AOCI before reclassifications, net of income tax	(19,977)	(16,492)	(23,876)
Amounts reclassified from AOCI	752	2,523	1,607
Deferred income tax benefit (expense)	(177)	(537)	(368)
Amounts reclassified from AOCI, net of income tax	575	1,986	1,239
Ending Balance	(19,402)	(14,506)	(22,646)
Unrealized Gains (Losses) on Derivatives
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	183	1,557	1,629
OCI before reclassifications	(549)	(1,106)	(583)
Deferred income tax benefit (expense)	144	267	89
AOCI before reclassifications, net of income tax	(222)	718	1,135
Amounts reclassified from AOCI	760	(705)	498
Deferred income tax benefit (expense)	(168)	170	(76)
Amounts reclassified from AOCI, net of income tax	592	(535)	422
Ending Balance	370	183	1,557
FPBs Discount Rate Remeasurement Gains (Losses)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	2,658	6,115	(18,559)
OCI before reclassifications	4,997	(4,361)	31,755
Deferred income tax benefit (expense)	(1,126)	904	(7,116)
AOCI before reclassifications, net of income tax	6,529	2,658	6,080
Amounts reclassified from AOCI	0	0	0
Deferred income tax benefit (expense)	0	0	0
Amounts reclassified from AOCI, net of income tax	0	0	0
Ending Balance	6,529	2,658	6,115
MRBs Instrument-Specific Credit Risk Remeasurement Gains (Losses)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	27	107	279
OCI before reclassifications	(124)	(102)	(219)
Deferred income tax benefit (expense)	26	22	47
AOCI before reclassifications, net of income tax	(71)	27	107
Amounts reclassified from AOCI	0	0	0
Deferred income tax benefit (expense)	0	0	0
Amounts reclassified from AOCI, net of income tax	0	0	0
Ending Balance	(71)	27	107
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(6,158)	(6,377)	(5,121)
OCI before reclassifications	(858)	296	(1,625)
Deferred income tax benefit (expense)	(154)	(77)	(18)
AOCI before reclassifications, net of income tax	(7,170)	(6,158)	(6,764)
Amounts reclassified from AOCI	0	0	0
Deferred income tax benefit (expense)	0	0	0
Amounts reclassified from AOCI, net of income tax	0	0	0
Ending Balance	(7,170)	(6,158)	(6,377)
Defined Benefit Plans Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(1,446)	(1,377)	(1,598)
OCI before reclassifications	(123)	(207)	188
Deferred income tax benefit (expense)	31	45	(39)
AOCI before reclassifications, net of income tax	(1,538)	(1,539)	(1,449)
Amounts reclassified from AOCI	128	119	93
Deferred income tax benefit (expense)	(32)	(26)	(19)
Amounts reclassified from AOCI, net of income tax	96	93	74
Ending Balance	$ (1,442)	$ (1,446)	(1,377)
Disposal Group, Held-for-Sale or Disposed of by Sale | Accumulated Other Comprehensive Income (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Amounts reclassified from AOCI, net of income tax			411
Disposal Group, Held-for-Sale or Disposed of by Sale | Unrealized Investment Gains (Losses), Net of Related Offsets
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Amounts reclassified from AOCI, net of income tax			(9)
Disposal Group, Held-for-Sale or Disposed of by Sale | Unrealized Gains (Losses) on Derivatives
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Amounts reclassified from AOCI, net of income tax			0
Disposal Group, Held-for-Sale or Disposed of by Sale | FPBs Discount Rate Remeasurement Gains (Losses)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Amounts reclassified from AOCI, net of income tax			35
Disposal Group, Held-for-Sale or Disposed of by Sale | MRBs Instrument-Specific Credit Risk Remeasurement Gains (Losses)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Amounts reclassified from AOCI, net of income tax			0
Disposal Group, Held-for-Sale or Disposed of by Sale | Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Amounts reclassified from AOCI, net of income tax			387
Disposal Group, Held-for-Sale or Disposed of by Sale | Defined Benefit Plans Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Amounts reclassified from AOCI, net of income tax			$ (2)