Equity - Narrative (Details) - USD ($)					1 Months Ended	3 Months Ended		9 Months Ended
	Nov. 01, 2023	Jun. 26, 2023	Jun. 12, 2023	Mar. 14, 2019	Oct. 27, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Aug. 01, 2023	Dec. 31, 2022
Class of Stock [Line Items]
Preferred stock, par value (in dollars per share)						$ 5.00		$ 5.00			$ 5.00
Common stock, par value (in dollars per share)						$ 2.50		$ 2.50			$ 2.50
Authorized repurchase amount										$ 7,500,000,000
Shares purchased (in shares)								34,600,000
Aggregate repurchases of common stock						$ 794,000,000	$ 1,268,000,000	$ 1,959,000,000	$ 4,370,000,000
Dividends declared, preferred stock (in dollars per share)						$ 365.625	$ 365.625	$ 1,096.875	$ 1,096.875
Remaining authorized repurchase amount										$ 2,150,000,000
Total number of warrants repurchased (in shares)		12,200,000
Corebridge Financial Inc
Class of Stock [Line Items]
Shares sold in secondary offering (in shares)			648,000,000
Ownership (as a percent)						65.60%		65.60%
Corebridge Financial Inc | AIG
Class of Stock [Line Items]
Total number of warrants repurchased (in shares)								11,000,000
Secondary Offering | Corebridge Financial Inc
Class of Stock [Line Items]
Shares sold in secondary offering (in shares)			74,750,000
IPO | Corebridge Financial Inc
Class of Stock [Line Items]
Shares sold in secondary offering (in shares)			65,000,000
Underwriter's Option | Corebridge Financial Inc
Class of Stock [Line Items]
Shares sold in secondary offering (in shares)			9,750,000
Subsequent event
Class of Stock [Line Items]
Shares purchased (in shares)					3,000,000
Aggregate repurchases of common stock					$ 154,000,000
Dividends declared, common stock (in dollars per share)	$ 0.36
Dividends declared, preferred stock (in dollars per share)	$ 365.625
Series A Preferred Stock
Class of Stock [Line Items]
Issuances (in shares)				20,000
Preferred stock, dividend rate (as a percent)				5.85%
Preferred stock, par value (in dollars per share)				$ 5.00
Preferred stock liquidation preference (in dollars per share)				$ 25,000
Issuance of preferred stock				$ 485,000,000
Series A Depositary Shares
Class of Stock [Line Items]
Issuances (in shares)				20,000,000
Preferred stock liquidation preference (in dollars per share)				$ 25