Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,879	$ 1,188
Other comprehensive income (loss) before income taxes:
Unrealized foreign currency translation gains (losses) during period	(501)	(43)
Unrealized gains (losses) on fixed maturity securities:
Unrealized holding gains (losses) on fixed maturity securities during period	103	2,578
Reclassification adjustment for (gains) losses on fixed maturity securities included in net earnings	(168)	(57)
Unrealized gains (losses) on derivatives during period	(5)	1
Effect of changes in discount rate assumptions during period	1,348	(3,537)
Pension liability adjustment during period	2	9
Total other comprehensive income (loss) before income taxes	779	(1,049)
Income tax expense (benefit) related to items of other comprehensive income (loss)	361	(200)
Other comprehensive income (loss), net of income taxes	418	(849)
Total comprehensive income (loss)	$ 2,297	$ 339