Equity - Schedule of accumulated other comprehensive income (loss) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	$ 46,306	$ 58,666	$ 43,454	$ 69,034	[1]
Change in unrealized appreciation (depreciation) of investments*	(2,279)	(17,904)	2,726	(38,071)
Change in other	(159)	(4)	(53)	11
Change in fair value of market risk benefits, net	(241)	737	(146)	1,728
Change in discount rates	531	2,352	4	5,235
Change in future policy benefits	137	640	37	1,435
Change in foreign currency translation adjustments	(25)	(273)	(44)	(276)
Change in net actuarial loss	78	5	105	16
Change in prior service cost	2	4	2	5
Change in deferred tax asset (liability)	218	1,830	(456)	4,193
Change in fair value of liabilities under fair value option attributable to changes in our own credit risk		(4)		(4)
Other comprehensive income (loss)	(1,738)	(12,617)	2,175	(25,728)
Corebridge noncontrolling interests sale	1,827		1,827
Balance, end of period	46,491	47,225	46,491	47,225
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(19,329)	(7,028)	(22,616)	5,071	[1]
Other comprehensive income (loss)	(1,480)	(11,619)	1,807	(23,718)
Balance, end of period	(18,982)	(18,647)	(18,982)	(18,647)
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	(134)	(88)	(136)	(48)
Balance, end of period	(60)	(56)	(60)	(56)
Unrealized Appreciation (Depreciation) of All Other Investments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(17,129)	(2,690)	(20,675)	12,125
Balance, end of period	(16,655)	(16,248)	(16,655)	(16,248)
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	(226)	(791)	(284)	(1,496)
Other comprehensive income (loss)	(190)	582	(115)	1,364
Balance, end of period	(315)	(267)	(315)	(267)
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	2,150	(99)	2,459	(2,167)
Other comprehensive income (loss)	373	1,870	(47)	4,160
Balance, end of period	2,067	1,590	2,067	1,590
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(3,094)	(2,472)	(3,056)	(2,446)
Balance, end of period	(3,174)	(2,790)	(3,174)	(2,790)
Retirement Plan Liabilities Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(896)	(894)	(924)	(903)
Balance, end of period	(845)	(878)	(845)	(878)
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	0	6
Balance, end of period	0	2	0	2
Noncontrolling interests
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	(258)	(998)	368	(2,010)
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	14	4	18	(1)
Unrealized Appreciation (Depreciation) of All Other Investments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	(347)	(1,224)	359	(2,550)
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	(47)	58	(30)	135
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	111	181	0	403
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	11	(17)	21	3
Retirement Plan Liabilities Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	0	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	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	(241)	737	(146)	1,728
Change in deferred tax asset (liability)	51	(155)	31	(364)
Other comprehensive income (loss)	(190)	582	(115)	1,364
Corebridge noncontrolling interests sale	54		54
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	531	2,352	4	5,235
Change in deferred tax asset (liability)	(158)	(482)	(51)	(1,075)
Other comprehensive income (loss)	373	1,870	(47)	4,160
Corebridge noncontrolling interests sale	(345)		(345)
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*	104	45	113	(12)
Change in other	0	(1)	0	(1)
Change in deferred tax asset (liability)	(20)	(8)	(23)	4
Other comprehensive income (loss)	84	36	90	(9)
Corebridge noncontrolling interests sale	4		4
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*	(2,383)	(17,949)	2,613	(38,059)
Change in other	(159)	(3)	(53)	12
Change in future policy benefits	137	640	37	1,435
Change in deferred tax asset (liability)	407	2,530	(343)	5,689
Other comprehensive income (loss)	(1,998)	(14,782)	2,254	(30,923)
Corebridge noncontrolling interests sale	2,125		2,125
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Change in foreign currency translation adjustments	(25)	(273)	(44)	(276)
Change in deferred tax asset (liability)	(34)	(62)	(43)	(65)
Other comprehensive income (loss)	(59)	(335)	(87)	(341)
Corebridge noncontrolling interests sale	(10)		(10)
Retirement Plan Liabilities Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Change in net actuarial loss	78	5	105	16
Change in prior service cost	2	4	2	5
Change in deferred tax asset (liability)	(28)	7	(27)	4
Other comprehensive income (loss)	52	16	80	25
Corebridge noncontrolling interests sale	(1)		(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		(4)		(4)
Other comprehensive income (loss)	$ 0	$ (4)	$ 0	$ (4)

[1] Updated to reflect the adoption of long-duration targets improvements, see Note 2.