Equity - Schedule of accumulated other comprehensive income (loss) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	$ 46,491	$ 47,224	$ 43,454	$ 69,034	[1]
Change in unrealized appreciation (depreciation) of investments*	(7,094)	(12,134)	(4,368)	(50,205)
Change in other	6	38	(47)	49
Change in fair value of market risk benefits, net	(104)	320	(250)	2,048
Change in discount rates	1,470	2,168	1,474	7,403
Change in future policy benefits	173	450	210	1,885
Change in foreign currency translation adjustments	(279)	(748)	(323)	(1,024)
Change in net actuarial loss	62	15	167	31
Change in prior service cost	1	3	3	8
Change in deferred tax asset (liability)	847	1,582	391	5,775
Change in fair value of liabilities under fair value option attributable to changes in our own credit risk				(4)
Other comprehensive income (loss)	(4,918)	(8,306)	(2,743)	(34,034)
Corebridge noncontrolling interests	(61)	2,116	1,766	2,116
Balance, end of period	43,213	42,113	43,213	42,113
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(18,982)	(18,647)	(22,616)	5,071	[1]
Other comprehensive income (loss)	(3,486)	(7,589)	(1,679)	(31,307)
Balance, end of period	(22,529)	(24,120)	(22,529)	(24,120)
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	(60)	(56)	(136)	(48)
Balance, end of period	(110)	(124)	(110)	(124)
Unrealized Appreciation (Depreciation) of All Other Investments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(16,655)	(16,248)	(20,675)	12,125
Balance, end of period	(20,661)	(22,344)	(20,661)	(22,344)
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	(315)	(267)	(284)	(1,496)
Other comprehensive income (loss)	(81)	253	(196)	1,617
Balance, end of period	(369)	(33)	(369)	(33)
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	2,067	1,590	2,459	(2,167)
Other comprehensive income (loss)	1,147	1,725	1,100	5,885
Balance, end of period	2,841	2,722	2,841	2,722
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(3,174)	(2,790)	(3,056)	(2,446)
Balance, end of period	(3,430)	(3,479)	(3,430)	(3,479)
Retirement Plan Liabilities Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(845)	(878)	(924)	(903)
Balance, end of period	(800)	(864)	(800)	(864)
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	2	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	(1,432)	(717)	(1,064)	(2,727)
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)	(6)	1	(7)
Unrealized Appreciation (Depreciation) of All Other Investments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	(1,760)	(923)	(1,401)	(3,473)
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	(29)	30	(59)	165
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	387	200	387	603
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Noncontrolling interests	(13)	(18)	8	(15)
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	(104)	320	(250)	2,048
Change in deferred tax asset (liability)	23	(67)	54	(431)
Other comprehensive income (loss)	(81)	253	(196)	1,617
Corebridge noncontrolling interests	(2)	11	52	11
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	1,470	2,168	1,474	7,403
Change in deferred tax asset (liability)	(323)	(443)	(374)	(1,518)
Other comprehensive income (loss)	1,147	1,725	1,100	5,885
Corebridge noncontrolling interests	14	(393)	(331)	(393)
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*	(69)	(94)	44	(106)
Change in other	(11)	0	(11)	(1)
Change in deferred tax asset (liability)	14	20	(9)	24
Other comprehensive income (loss)	(66)	(74)	24	(83)
Corebridge noncontrolling interests	(1)	0	3	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*	(7,025)	(12,040)	(4,412)	(50,099)
Change in other	17	38	(36)	50
Change in future policy benefits	173	450	210	1,885
Change in deferred tax asset (liability)	1,141	2,048	798	7,737
Other comprehensive income (loss)	(5,694)	(9,504)	(3,440)	(40,427)
Corebridge noncontrolling interests	(72)	2,485	2,053	2,485
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Change in foreign currency translation adjustments	(279)	(748)	(323)	(1,024)
Change in deferred tax asset (liability)	10	27	(33)	(38)
Other comprehensive income (loss)	(269)	(721)	(356)	(1,062)
Corebridge noncontrolling interests	0	14	(10)	14
Retirement Plan Liabilities Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Change in net actuarial loss	62	15	167	31
Change in prior service cost	1	3	3	8
Change in deferred tax asset (liability)	(18)	(3)	(45)	1
Other comprehensive income (loss)	45	15	125	40
Corebridge noncontrolling interests	0	(1)	(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)
Other comprehensive income (loss)	$ 0	$ 0	$ 0	$ (4)

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