Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net earnings	$ 852	$ 898	$ 1,995
Net unrealized gains (losses) on securities:
Unrealized holding gains (losses) on securities arising during the period	176	(647)	(218)
Reclassification adjustment for realized (gains) losses included in net earnings	34	14	(17)
Reclassification adjustment for unrealized gains of subsidiaries sold	0	0	(884)
Total net unrealized gains (losses) on securities	210	(633)	(1,119)
Net unrealized gains (losses) on cash flow hedges:
Unrealized holding gains (losses) on cash flow hedges arising during the period	(9)	(29)	(1)
Reclassification adjustment for investment income included in net earnings	21	0	(11)
Reclassification adjustment for unrealized gains on cash flow hedges of subsidiaries sold	0	0	(29)
Total net unrealized gains (losses) on cash flow hedges	12	(29)	(41)
Foreign currency translation adjustments	3	(2)	(2)
Pension and other postretirement plans adjustments (“OPRP”):
Unrealized holding gains (losses) on pension and OPRP arising during the period	(1)	2	(1)
Reclassification adjustment for pension settlement loss included in net earnings	0	0	9
Total pension and OPRP adjustments	(1)	2	8
Other comprehensive income (loss), net of tax	224	(662)	(1,154)
Comprehensive income	$ 1,076	$ 236	$ 841