Equity - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	$ 44,475	$ 46,491	$ 51,301	$ 43,454
Change in unrealized appreciation (depreciation) of investments	1,626	(7,094)	(631)	(4,368)
Change in other	17	6	13	(47)
Change in fair value of market risk benefits, net		(104)	130	(250)
Change in discount rates	(12)	1,470	947	1,474
Change in future policy benefits		173	(59)	210
Change in foreign currency translation adjustments	427	(279)	173	(323)
Change in net actuarial loss	2	62	19	167
Change in prior service cost	(1)	1	2	3
Change in deferred tax asset (liability)	(212)	847	(324)	391
Corebridge deconsolidation, net of tax	0	0	7,214	0
Other comprehensive income (loss)	1,847	(4,918)	7,484	(2,743)
Corebridge noncontrolling interests		(61)	537	1,766
Balance, end of period	45,073	43,213	45,073	43,213
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(7,565)	(18,982)	(14,037)	(22,616)
Other comprehensive income (loss)	1,843	(3,486)	7,778	(1,679)
Balance, end of period	(5,722)	(22,529)	(5,722)	(22,529)
Unrealized Appreciation (Depreciation) of Fixed Maturity Securities on Which Allowance for Credit Losses Was Taken
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(38)	(60)	(106)	(136)
Balance, end of period	(1)	(110)	(1)	(110)
Unrealized Appreciation (Depreciation) of All Other Investments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(3,422)	(16,655)	(10,888)	(20,675)
Balance, end of period	(2,073)	(20,661)	(2,073)	(20,661)
Change in Fair Value of Market Risk Benefits Attributable to Changes in Our Own Credit Risk
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	0	(315)	(476)	(284)
Other comprehensive income (loss)	0	(81)	432	(196)
Balance, end of period	0	(369)	0	(369)
Change in the discount rates used to measure traditional and limited payment long-duration insurance contracts
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	22	2,067	1,233	2,459
Other comprehensive income (loss)	46	1,147	(802)	1,100
Balance, end of period	68	2,841	68	2,841
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(3,322)	(3,174)	(2,979)	(3,056)
Balance, end of period	(2,912)	(3,430)	(2,912)	(3,430)
Retirement Plan Liabilities Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(805)	(845)	(821)	(924)
Balance, end of period	(804)	(800)	(804)	(800)
Noncontrolling interests
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	4	(1,432)	(294)	(1,064)
Unrealized Appreciation (Depreciation) of Fixed Maturity Securities on Which Allowance for Credit Losses Was Taken
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	0	(17)	17	1
Unrealized Appreciation (Depreciation) of All Other Investments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	0	(1,760)	(559)	(1,401)
Change in Fair Value of Market Risk Benefits Attributable to Changes in Our Own Credit Risk
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	0	(29)	(11)	(59)
Change in the discount rates used to measure traditional and limited payment long-duration insurance contracts
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	0	387	258	387
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	4	(13)	1	8
Retirement Plan Liabilities Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	0	0	0	0
Unrealized Appreciation (Depreciation) of Fixed Maturity Securities on Which Allowance for Credit Losses Was Taken
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Change in unrealized appreciation (depreciation) of investments	45	(69)	98	44
Change in other		(11)		(11)
Change in deferred tax asset (liability)	(8)	14	(20)	(9)
Corebridge deconsolidation, net of tax			42
Other comprehensive income (loss)	37	(66)	120	24
Corebridge noncontrolling interests		(1)	2	3
Unrealized Appreciation (Depreciation) of All Other Investments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Change in unrealized appreciation (depreciation) of investments	1,581	(7,025)	(729)	(4,412)
Change in other	17	17	13	(36)
Change in future policy benefits		173	(59)	210
Change in deferred tax asset (liability)	(249)	1,141	(92)	798
Corebridge deconsolidation, net of tax			8,513
Other comprehensive income (loss)	1,349	(5,694)	7,646	(3,440)
Corebridge noncontrolling interests		(72)	610	2,053
Change in Fair Value of Market Risk Benefits Attributable to Changes in Our Own Credit Risk
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Change in fair value of market risk benefits, net		(104)	130	(250)
Change in deferred tax asset (liability)		23	(28)	54
Corebridge deconsolidation, net of tax			330
Other comprehensive income (loss)	0	(81)	432	(196)
Corebridge noncontrolling interests		(2)	33	52
Change in the discount rates used to measure traditional and limited payment long-duration insurance contracts
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Change in discount rates	(12)	1,470	947	1,474
Change in deferred tax asset (liability)	58	(323)	(166)	(374)
Corebridge deconsolidation, net of tax			(1,583)
Other comprehensive income (loss)	46	1,147	(802)	1,100
Corebridge noncontrolling interests		14	(105)	(331)
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Change in foreign currency translation adjustments	427	(279)	173	(323)
Change in deferred tax asset (liability)	(13)	10	(14)	(33)
Corebridge deconsolidation, net of tax			(88)
Other comprehensive income (loss)	414	(269)	71	(356)
Corebridge noncontrolling interests		0	(3)	(10)
Retirement Plan Liabilities Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Change in net actuarial loss	2	62	19	167
Change in prior service cost	(1)	1	2	3
Change in deferred tax asset (liability)		(18)	(4)	(45)
Other comprehensive income (loss)	$ 1	45	17	125
Corebridge noncontrolling interests		$ 0	$ 0	$ (1)