Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,639	$ (93)	$ 2,267	$ 3,541
Other comprehensive income (loss) before income taxes:
Unrealized foreign currency translation gains (losses) during period	(110)	788	421	(52)
Unrealized gains (losses) on fixed maturity securities:
Unrealized holding gains (losses) on fixed maturity securities during period	188	268	(2,117)	(457)
Reclassification adjustment for (gains) losses on fixed maturity securities included in net earnings	(32)	(53)	(58)	(271)
Unrealized gains (losses) on derivatives during period	1	2	4	3
Effect of changes in discount rate assumptions during period	1,566	(1,889)	6,108	3,157
Pension liability adjustment during period	0	(3)	41	0
Total other comprehensive income (loss) before income taxes	1,613	(887)	4,399	2,380
Income tax expense (benefit) related to items of other comprehensive income (loss)	469	(502)	768	537
Other comprehensive income (loss), net of income taxes	1,144	(385)	3,631	1,843
Total comprehensive income (loss)	$ 2,783	$ (478)	$ 5,898	$ 5,384