Equity - Schedule of accumulated other comprehensive income (loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	$ 43,454	$ 69,034	$ 67,199
Change in unrealized appreciation (depreciation) of investments*	8,440	(47,766)	(9,255)
Change in other	42	(12)	(28)
Change in fair value of market risk benefits, net	(695)	1,635	227
Change in discount rates	(1,045)	6,993	1,717
Change in future policy benefits	(254)	1,805	380
Change in foreign currency translation adjustments	137	(593)	(108)
Change in net actuarial loss	143	(31)	417
Change in prior service cost	4	8	8
Change in deferred tax asset (liability)	(832)	5,664	1,220
Change in fair value of liabilities under fair value option attributable to changes in our own credit risk		(6)	(2)
Other comprehensive income (loss)	5,940	(32,303)	(5,424)
Corebridge noncontrolling interests	3,938	2,116	(918)
Balance, end of period	51,301	43,454	69,034
Cumulative effect of change in accounting principle
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period			(1,264)
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(22,616)	5,071	13,511
Other comprehensive income (loss)	4,641	(29,803)	(5,325)
Balance, end of period	(14,037)	(22,616)	5,071
Total | Cumulative effect of change in accounting principle
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period			(2,197)
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	(136)	(48)	(95)
Balance, end of period	(106)	(136)	(48)
Unrealized Appreciation (Depreciation) of All Other Investments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(20,675)	12,125	17,093
Balance, end of period	(10,888)	(20,675)	12,125
Unrealized Appreciation (Depreciation) of All Other Investments | Cumulative effect of change in accounting principle
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period			3,407
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	(284)	(1,496)	0
Other comprehensive income (loss)	(544)	1,294	179
Balance, end of period	(476)	(284)	(1,496)
Change in Fair Value of Market Risk Benefits Attributable to Changes in Our Own Credit Risk | Cumulative effect of change in accounting principle
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period			(1,839)
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	2,459	(2,167)	0
Other comprehensive income (loss)	(871)	5,544	1,361
Balance, end of period	1,233	2,459	(2,167)
Change in the discount rates used to measure traditional and limited payment long-duration insurance contracts | Cumulative effect of change in accounting principle
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period			(3,765)
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(3,056)	(2,446)	(2,267)
Balance, end of period	(2,979)	(3,056)	(2,446)
Retirement Plan Liabilities Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(924)	(903)	(1,228)
Balance, end of period	(821)	(924)	(903)
Fair Value of Liabilities Under Fair Value Option 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	6	8
Balance, end of period	0	0	6
Noncontrolling interests
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	1,299	(2,500)	(99)
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	(3)	(6)	0
Unrealized Appreciation (Depreciation) of All Other Investments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	1,871	(3,123)	(109)
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	(199)	93	7
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	(377)	525	6
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	7	11	(3)
Retirement Plan Liabilities Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	0	0	0
Fair Value of Liabilities Under Fair Value Option Attributable to Changes in Our Own Credit Risk
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	0	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	(695)	1,635	227
Change in deferred tax asset (liability)	151	(341)	(48)
Other comprehensive income (loss)	(544)	1,294	179
Corebridge noncontrolling interests	153	11	171
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	(1,045)	6,993	1,717
Change in deferred tax asset (liability)	174	(1,449)	(356)
Other comprehensive income (loss)	(871)	5,544	1,361
Corebridge noncontrolling interests	(732)	(393)	243
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*	30	(119)	58
Change in other	(10)	0	(3)
Change in deferred tax asset (liability)	(6)	25	(11)
Other comprehensive income (loss)	14	(94)	44
Corebridge noncontrolling interests	13	0	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*	8,410	(47,647)	(9,313)
Change in other	52	(12)	(25)
Change in future policy benefits	(254)	1,805	380
Change in deferred tax asset (liability)	(1,074)	7,446	1,807
Other comprehensive income (loss)	7,134	(38,408)	(7,151)
Corebridge noncontrolling interests	4,524	2,485	(1,333)
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Change in foreign currency translation adjustments	137	(593)	(108)
Change in deferred tax asset (liability)	(35)	(20)	(72)
Other comprehensive income (loss)	102	(613)	(180)
Corebridge noncontrolling interests	(18)	14	(2)
Retirement Plan Liabilities Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Change in net actuarial loss	143	(31)	417
Change in prior service cost	4	8	8
Change in deferred tax asset (liability)	(42)	3	(100)
Other comprehensive income (loss)	105	(20)	325
Corebridge noncontrolling interests	(2)	(1)
Fair Value of Liabilities Under Fair Value Option 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 liabilities under fair value option attributable to changes in our own credit risk		(6)	(2)
Other comprehensive income (loss)	$ 0	$ (6)	$ (2)