Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,188	$ 1,047
Other comprehensive income (loss) before income taxes:
Unrealized foreign currency translation gains (losses) during period	(43)	(452)
Unrealized gains (losses) on fixed maturity securities:
Unrealized holding gains (losses) on fixed maturity securities during period	2,578	(4,752)
Reclassification adjustment for (gains) losses on fixed maturity securities included in net earnings	(57)	(77)
Unrealized gains (losses) on derivatives during period	1	1
Effect of changes in discount rate assumptions during period	(3,537)	5,347
Pension liability adjustment during period	9	3
Total other comprehensive income (loss) before income taxes	(1,049)	70
Income tax expense (benefit) related to items of other comprehensive income (loss)	(200)	110
Other comprehensive income (loss), net of income taxes	(849)	(40)
Total comprehensive income (loss)	$ 339	$ 1,007