Discontinued Operations - Assets and liabilities of businesses disposed (Details) - USD ($) $ in Millions	Dec. 31, 2021	May 31, 2021	Dec. 31, 2020
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total assets of discontinued annuity operations	$ 0		$ 47,885
Total liabilities of discontinued annuity operations	0		44,458
Reclassify AOCI	119		1,273
Shareholders’ equity	5,012		6,789
Annuity subsidiaries
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents		$ 2,060
Investments		38,323
Recoverables from reinsurers		6,748
Other assets		2,152
Total assets of discontinued annuity operations	$ 0	49,283	47,885
Annuity benefits accumulated		43,690
Other liabilities		1,813
Total liabilities of discontinued annuity operations		45,503	44,458
Receivable from AFG for real estate-related investments		0	537
Reclassify AOCI		(913)	(1,071)
Shareholders’ equity		$ 2,867	2,893
Annuity subsidiaries | Assets of discontinued annuity operations
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents			1,145
Investments			38,011
Recoverables from reinsurers			6,804
Other assets			1,925
Annuity subsidiaries | Liabilities of discontinued annuity operations
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Annuity benefits accumulated			42,573
Other liabilities			$ 1,885