Segment Information - Schedule of continuing operations by operating segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Premiums	$ 2,295	$ 2,105
Policy fees	714	698
Total net investment income	2,924	2,695
Total net realized losses	(320)	(1,458)
Advisory fee and other income	223	222
Total revenues	5,836	4,262
Policyholder benefits	2,807	2,495
Change in the fair value of market risk benefits, net	(369)	196
Interest credited to policyholder account balances	1,199	1,026
Amortization of deferred policy acquisition costs and value of business acquired	267	256
Non-deferrable insurance commissions	143	136
Advisory fee expenses	68	65
General operating expenses	572	582
Interest expense	138	172
Net (gain) loss on divestitures	(5)	3
Total benefits and expenses	4,820	4,931
Net income (loss) attributable to noncontrolling interests	51	(6)
Income (loss) before income tax expense (benefit)	1,016	(669)
Fortitude Holdings
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net investment income	332	394
Income (loss) before income tax expense (benefit)	190	(611)
Operating Segments | Individual Retirement
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Premiums	41	78
Policy fees	191	174
Total net investment income	1,339	1,128
Total net realized losses	0	0
Advisory fee and other income	116	103
Total revenues	1,687	1,483
Policyholder benefits	36	65
Change in the fair value of market risk benefits, net	0	0
Interest credited to policyholder account balances	639	519
Amortization of deferred policy acquisition costs and value of business acquired	149	137
Non-deferrable insurance commissions	90	86
Advisory fee expenses	35	34
General operating expenses	116	108
Interest expense	0	0
Net (gain) loss on divestitures	0	0
Total benefits and expenses	1,065	949
Net income (loss) attributable to noncontrolling interests	0	0
Adjusted pre-tax operating income (loss)	622	534
Operating Segments | Group Retirement
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Premiums	5	6
Policy fees	107	100
Total net investment income	495	500
Total net realized losses	0	0
Advisory fee and other income	83	76
Total revenues	690	682
Policyholder benefits	3	9
Change in the fair value of market risk benefits, net	0	0
Interest credited to policyholder account balances	298	291
Amortization of deferred policy acquisition costs and value of business acquired	21	21
Non-deferrable insurance commissions	29	28
Advisory fee expenses	33	29
General operating expenses	106	118
Interest expense	0	0
Net (gain) loss on divestitures	0	0
Total benefits and expenses	490	496
Net income (loss) attributable to noncontrolling interests	0	0
Adjusted pre-tax operating income (loss)	200	186
Operating Segments | Life Insurance
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Premiums	434	425
Policy fees	368	375
Total net investment income	326	317
Total net realized losses	0	0
Advisory fee and other income	0	29
Total revenues	1,128	1,146
Policyholder benefits	748	708
Change in the fair value of market risk benefits, net	0	0
Interest credited to policyholder account balances	83	82
Amortization of deferred policy acquisition costs and value of business acquired	94	96
Non-deferrable insurance commissions	19	17
Advisory fee expenses	0	2
General operating expenses	130	159
Interest expense	0	0
Net (gain) loss on divestitures	0	0
Total benefits and expenses	1,074	1,064
Net income (loss) attributable to noncontrolling interests	0	0
Adjusted pre-tax operating income (loss)	54	82
Operating Segments | Institutional Markets
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Premiums	1,796	1,575
Policy fees	48	49
Total net investment income	487	332
Total net realized losses	0	0
Advisory fee and other income	1	0
Total revenues	2,332	1,956
Policyholder benefits	2,023	1,718
Change in the fair value of market risk benefits, net	0	0
Interest credited to policyholder account balances	169	123
Amortization of deferred policy acquisition costs and value of business acquired	3	2
Non-deferrable insurance commissions	5	5
Advisory fee expenses	0	0
General operating expenses	20	23
Interest expense	0	0
Net (gain) loss on divestitures	0	0
Total benefits and expenses	2,220	1,871
Net income (loss) attributable to noncontrolling interests	0	0
Adjusted pre-tax operating income (loss)	112	85
Operating Segments | Corporate and Other
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Premiums	19	20
Policy fees	0	0
Total net investment income	(10)	68
Total net realized losses	(8)	4
Advisory fee and other income	23	14
Total revenues	24	106
Policyholder benefits	0	0
Change in the fair value of market risk benefits, net	0	0
Interest credited to policyholder account balances	0	0
Amortization of deferred policy acquisition costs and value of business acquired	0	0
Non-deferrable insurance commissions	0	0
Advisory fee expenses	0	0
General operating expenses	86	91
Interest expense	137	172
Net (gain) loss on divestitures	0	0
Total benefits and expenses	223	263
Net income (loss) attributable to noncontrolling interests	51	(6)
Adjusted pre-tax operating income (loss)	(148)	(163)
Eliminations
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Premiums	0	0
Policy fees	0	0
Total net investment income	(8)	(10)
Total net realized losses	0	0
Advisory fee and other income	0	0
Total revenues	(8)	(10)
Policyholder benefits	0	0
Change in the fair value of market risk benefits, net	0	0
Interest credited to policyholder account balances	0	0
Amortization of deferred policy acquisition costs and value of business acquired	0	0
Non-deferrable insurance commissions	0	0
Advisory fee expenses	0	0
General operating expenses	0	0
Interest expense	(5)	(10)
Net (gain) loss on divestitures	0	0
Total benefits and expenses	(5)	(10)
Net income (loss) attributable to noncontrolling interests	0	0
Adjusted pre-tax operating income (loss)	(3)	0
Adjustments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Premiums	0	1
Policy fees	0	0
Total net investment income	295	360
Total net realized losses	(312)	(1,462)
Advisory fee and other income	0	0
Total revenues	(17)	(1,101)
Policyholder benefits	(3)	(5)
Change in the fair value of market risk benefits, net	(369)	196
Interest credited to policyholder account balances	10	11
Amortization of deferred policy acquisition costs and value of business acquired	0	0
Non-deferrable insurance commissions	0	0
Advisory fee expenses	0	0
General operating expenses	114	83
Interest expense	6	10
Net (gain) loss on divestitures	(5)	3
Total benefits and expenses	(247)	298
Net income (loss) attributable to noncontrolling interests	(51)	6
Total Corebridge
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Premiums	2,295	2,104
Policy fees	714	698
Total net investment income	2,629	2,335
Total net realized losses	(8)	4
Advisory fee and other income	223	222
Total revenues	5,853	5,363
Policyholder benefits	2,810	2,500
Change in the fair value of market risk benefits, net	0	0
Interest credited to policyholder account balances	1,189	1,015
Amortization of deferred policy acquisition costs and value of business acquired	267	256
Non-deferrable insurance commissions	143	136
Advisory fee expenses	68	65
General operating expenses	458	499
Interest expense	132	162
Net (gain) loss on divestitures	0	0
Total benefits and expenses	5,067	4,633
Net income (loss) attributable to noncontrolling interests	51	(6)
Adjusted pre-tax operating income (loss)	$ 837	$ 724