Discontinued Operations - Details of the results of the Annuity subsidiaries sold (Details) - USD ($) $ in Millions		5 Months Ended	12 Months Ended
	May 31, 2021	May 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net earnings (loss) from discontinued operations		$ 914	$ 914	$ 407	$ 378
Annuity subsidiaries
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of discontinued operations, net of tax	$ 656
Annuity subsidiaries | Net earnings (loss) from discontinued operations
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net investment income		746		1,670	1,774
Realized gains (losses) on securities		112		365	132
Other income		52		123	137
Total revenues		910		2,158	2,043
Annuity benefits		377		1,192	1,151
Annuity and supplemental insurance acquisition expenses		136		306	253
Other expenses		73		151	165
Total costs and expenses		586		1,649	1,569
Earnings (loss) before income taxes from discontinued operations		324		509	474
Provision (credit) for income taxes on operations		66		102	96
Net earnings (loss) from operations, net of tax		258		407	378
Gain on sale of discontinued operations, net of tax		$ 656		$ 0	$ 0