Equity - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	$ 51,301	$ 43,454
Change in unrealized appreciation (depreciation) of investments*	(1,202)	5,005
Change in other	5	106
Change in fair value of market risk benefits, net	(29)	95
Change in discount rates	697	(527)
Change in future policy benefits	(126)	(100)
Change in foreign currency translation adjustments	(339)	(19)
Change in net actuarial loss	7	27
Change in prior service cost	2
Change in deferred tax asset (liability)	(72)	(674)
Other comprehensive income (loss)	(1,057)	3,913
Corebridge noncontrolling interests	(73)
Balance, end of period	49,110	46,306
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(14,037)	(22,616)
Other comprehensive income (loss)	(759)	3,287
Balance, end of period	(14,869)	(19,329)
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	(106)	(136)
Balance, end of period	(66)	(134)
Unrealized Appreciation (Depreciation) of All Other Investments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(10,888)	(20,675)
Balance, end of period	(11,702)	(17,129)
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	(476)	(284)
Other comprehensive income (loss)	(23)	75
Balance, end of period	(493)	(226)
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	1,233	2,459
Other comprehensive income (loss)	545	(420)
Balance, end of period	1,535	2,150
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(2,979)	(3,056)
Balance, end of period	(3,329)	(3,094)
Retirement Plan Liabilities Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(821)	(924)
Balance, end of period	(814)	(896)
Noncontrolling interests
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	(298)	626
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	17	4
Unrealized Appreciation (Depreciation) of All Other Investments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	(559)	706
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	(11)	17
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	258	(111)
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	(3)	10
Retirement Plan Liabilities Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	0	0
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	(29)	95
Change in deferred tax asset (liability)	6	(20)
Other comprehensive income (loss)	(23)	75
Corebridge noncontrolling interests	(5)
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	697	(527)
Change in deferred tax asset (liability)	(152)	107
Other comprehensive income (loss)	545	(420)
Corebridge noncontrolling interests	15
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*	72	9
Change in deferred tax asset (liability)	(15)	(3)
Other comprehensive income (loss)	57	6
Corebridge noncontrolling interests	0
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*	(1,274)	4,996
Change in other	5	106
Change in future policy benefits	(126)	(100)
Change in deferred tax asset (liability)	105	(750)
Other comprehensive income (loss)	(1,290)	4,252
Corebridge noncontrolling interests	(83)
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Change in foreign currency translation adjustments	(339)	(19)
Change in deferred tax asset (liability)	(14)	(9)
Other comprehensive income (loss)	(353)	(28)
Retirement Plan Liabilities Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Change in net actuarial loss	7	27
Change in prior service cost	2
Change in deferred tax asset (liability)	(2)	1
Other comprehensive income (loss)	$ 7	$ 28