BASIS OF PRESENTATION (Details) $ / shares in Units, $ in Millions						3 Months Ended
	Apr. 05, 2022 USD ($)	Dec. 15, 2021 USD ($)	Nov. 02, 2021 USD ($) individual	Nov. 01, 2021 USD ($)	Jul. 16, 2021 USD ($) item	Mar. 31, 2022 USD ($) item $ / shares	Mar. 31, 2021 USD ($)	Dec. 31, 2026 USD ($)	Dec. 31, 2021 $ / shares
Basis of Presentation [Line Items]
Number of countries in which the entity operates | item						70
Common stock, par value (in dollars per share) | $ / shares						$ 2.50			$ 2.5
Net income (loss) on sale of divested businesses						$ 40	$ 7
Life and Retirement Retail Mutual Funds
Basis of Presentation [Line Items]
Number of funds managed | item					6
Life and Retirement Retail Mutual Funds | Disposal Group
Basis of Presentation [Line Items]
Assets under management					$ 6,800
Number of funds managed | item					12
Life and retirement subsidiaries
Basis of Presentation [Line Items]
Voting interest in subsidiary, percent			9.90%
Total consideration			$ 2,200
Decrease to stockholders' equity related to disposal			629
Assets under management			50,000
Assets under management, incremental increase amount			$ 8,500
Dividends payable				$ 8,300
Percent of ownership interest permitted to be sold after first anniversary			25.00%
Percent of ownership interest permitted to be sold after second anniversary			67.00%
Percent of ownership interest permitted to be sold after third anniversary			75.00%
Notes issued				$ 8,300
Corebridge
Basis of Presentation [Line Items]
Number of directors | individual			11
Corebridge | Subsequent Event [Member]
Basis of Presentation [Line Items]
Notes issued	$ 6,500
Blackstone | Corebridge
Basis of Presentation [Line Items]
Number of directors | individual			1
AIG's Interest In US Affordable Housing Portfolio
Basis of Presentation [Line Items]
Total consideration		$ 4,900
Net income (loss) on sale of divested businesses		$ 3,000
Forecast | Life and retirement subsidiaries
Basis of Presentation [Line Items]
Assets under management								$ 92,500