Equity and Redeemable Noncontrolling Interest - Reclassification of significant items out of accumulated other comprehensive income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Reclassification of significant items out of Accumulated Other Comprehensive Income
Total net realized gains	$ 2,700	$ 571	$ 9,704	$ 1,660
Net income (loss) attributable to Corebridge	2,351	1,420	8,715	4,233
Amount Reclassified from AOCI
Reclassification of significant items out of Accumulated Other Comprehensive Income
Net income (loss) attributable to Corebridge	(105)	168	(491)	578
Unrealized appreciation (depreciation) of fixed maturity securities on which allowance for credit losses was taken | Amount Reclassified from AOCI
Reclassification of significant items out of Accumulated Other Comprehensive Income
Total net realized gains	0	2	(8)	0
Unrealized appreciation (depreciation) of all other investments | Amount Reclassified from AOCI
Reclassification of significant items out of Accumulated Other Comprehensive Income
Total net realized gains	$ (105)	$ 166	$ (483)	$ 578