Discontinued Operations - Assets and liabilities of businesses disposed (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	May 31, 2021
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Reclassify AOCI	$ (131)	$ 119
Net investment in annuity businesses sold, excluding AOCI	$ 4,835	$ 5,012
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			49,283
Annuity benefits accumulated			43,690
Other liabilities			1,813
Total liabilities of discontinued annuity operations			45,503
Reclassify AOCI			(913)
Net investment in annuity businesses sold, excluding AOCI			$ 2,867