Discontinued Operations - Details of the results of the Annuity subsidiaries sold (Details) - USD ($) $ in Millions		3 Months Ended
	May 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net earnings from discontinued operations		$ 0	$ 152
Annuity subsidiaries
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Tax liabilities triggered by pending sale	$ 41
Annuity subsidiaries | Net earnings from discontinued operations
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net investment income			447
Realized gains (losses) on securities			81
Other income			32
Total revenues			560
Annuity benefits			161
Annuity and supplemental insurance acquisition expenses			112
Other expenses			46
Total costs and expenses			319
Earnings before income taxes from discontinued operations			241
Provision for income taxes on discontinued operations			48
Tax liabilities triggered by pending sale			$ 41