Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net earnings, including noncontrolling interests	$ 1,995	$ 721	$ 869
Net unrealized gains (losses) on securities:
Unrealized holding gains (losses) on securities arising during the period	(218)	700	788
Reclassification adjustment for realized (gains) losses included in net earnings	(17)	(307)	(9)
Reclassification adjustment for unrealized gains of subsidiaries sold	(884)	0	0
Total net unrealized gains (losses) on securities	(1,119)	393	779
Net unrealized gains (losses) on cash flow hedges:
Unrealized holding gains (losses) on cash flow hedges arising during the period	(1)	56	31
Reclassification adjustment for investment income included in net earnings	(11)	(32)	(3)
Reclassification adjustment for unrealized gains on cash flow hedges of subsidiaries sold	(29)	0	0
Total net unrealized gains (losses) on cash flow hedges	(41)	24	28
Foreign currency translation adjustments	(2)	(1)	7
Pension and other postretirement plans adjustments (“OPRP”):
Unrealized holding losses on pension and OPRP arising during the period	(1)	(1)	0
Reclassification adjustment for pension settlement loss included in net earnings	9	1	1
Total pension and OPRP adjustments	8	0	1
Other comprehensive income (loss), net of tax	(1,154)	416	815
Total comprehensive income, net of tax	841	1,137	1,684
Less: Comprehensive income (loss) attributable to noncontrolling interests	0	(9)	(28)
Comprehensive income attributable to shareholders	$ 841	$ 1,146	$ 1,712