Condensed Consolidated Statements of Equity (unaudited) - USD ($) $ in Millions	Total	Common Class B	Total Corebridge Shareholders' Equity	Total Corebridge Shareholders' Equity Common Class B	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Retained Earnings Common Class B	Accumulated Other Comprehensive Income (Loss)	Non- Redeemable Noncontrolling Interests
Balance, beginning of period at Dec. 31, 2022	$ 10,319		$ 9,380		$ 6	$ 0	$ 8,030	$ 18,207		$ (16,863)	$ 939
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of common stock	(249)		(249)			(249)
Net income (loss) income attributable to Corebridge or noncontrolling interests	2,367		2,413					2,413			(46)
Dividends on common stock	(846)		(846)					(846)
Other comprehensive income (loss), net of tax	(2,424)		(2,431)							(2,431)	7
Changes in noncontrolling interests due to divestitures and acquisitions	(19)										(19)
Contributions from noncontrolling interests	63										63
Distributions to noncontrolling interests	(54)										(54)
Other	99		99				108	(9)
Balance, end of period at Sep. 30, 2023	9,256		8,366		6	(249)	8,138	19,765		(19,294)	890
Balance, beginning of period at Jun. 30, 2023	11,468		10,561		6	(202)	8,128	17,811		(15,182)	907
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of common stock	(47)		(47)			(47)
Net income (loss) income attributable to Corebridge or noncontrolling interests	2,069		2,101					2,101			(32)
Dividends on common stock		$ (146)		$ (146)					$ (146)
Other comprehensive income (loss), net of tax	(4,115)		(4,112)							(4,112)	(3)
Contributions from noncontrolling interests	20										20
Distributions to noncontrolling interests	(1)										(1)
Other	8		9				10	(1)			(1)
Balance, end of period at Sep. 30, 2023	9,256		8,366		6	(249)	8,138	19,765		(19,294)	890
Balance, beginning of period at Dec. 31, 2023	12,635		11,766		6	(503)	8,149	17,572		(13,458)	869
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under stock plans	1		1		1	23	(23)
Purchase of common stock	(1,401)		(1,401)			(1,401)
Net income (loss) income attributable to Corebridge or noncontrolling interests	(19)		59					59			(78)
Dividends on common stock	(415)		(415)					(415)
Other comprehensive income (loss), net of tax	3,619		3,612							3,612	7
Changes in noncontrolling interests due to divestitures and acquisitions	1										1
Contributions from noncontrolling interests	63										63
Distributions to noncontrolling interests	(24)										(24)
Other	(18)		(14)				22	2		(38)	(4)
Balance, end of period at Sep. 30, 2024	14,442		13,608		7	(1,881)	8,148	17,218		(9,884)	834
Balance, beginning of period at Jun. 30, 2024	11,812		10,996		7	(1,161)	8,122	18,536		(14,508)	816
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of common stock	(720)		(720)			(720)
Net income (loss) income attributable to Corebridge or noncontrolling interests	(1,187)		(1,184)					(1,184)			(3)
Dividends on common stock		$ (133)		$ (133)					$ (133)
Other comprehensive income (loss), net of tax	4,633		4,624							4,624	9
Contributions from noncontrolling interests	10										10
Distributions to noncontrolling interests	7										7
Other	20		25				26	(1)			(5)
Balance, end of period at Sep. 30, 2024	$ 14,442		$ 13,608		$ 7	$ (1,881)	$ 8,148	$ 17,218		$ (9,884)	$ 834