Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net earnings (loss), including noncontrolling interests	$ 1,002	$ 167	$ 1,421	$ (137)
Net unrealized gains (losses) on securities:
Unrealized holding gains (losses) on securities arising during the period	133	1,021	(148)	156
Reclassification adjustment for realized (gains) losses included in net earnings	(7)	(7)	(18)	12
Reclassification adjustment for unrealized gains of subsidiaries sold	884	0	884	0
Total net unrealized gains (losses) on securities	(758)	1,014	(1,050)	168
Net unrealized gains (losses) on cash flow hedges:
Unrealized holding gains (losses) on cash flow hedges arising during the period	6	12	(1)	48
Reclassification adjustment for investment income included in net earnings	(4)	(9)	(11)	(18)
Reclassification adjustment for unrealized gains on cash flow hedges of subsidiaries sold	(29)	0	(29)	0
Total net unrealized gains (losses) on cash flow hedges	(27)	3	(41)	30
Foreign currency translation adjustments	0	4	0	(6)
Pension and other postretirement plans adjustments (“OPRP”):
Unrealized holding losses on pension and OPRP arising during the period	(1)	0	(1)	0
Reclassification adjustment for pension settlement loss included in net earnings	9	0	9	0
Total pension and OPRP adjustments	8	0	8	0
Other comprehensive income (loss), net of tax	(777)	1,021	(1,083)	192
Total comprehensive income, net of tax	225	1,188	338	55
Less: Comprehensive income (loss) attributable to noncontrolling interests	0	(10)	0	(11)
Comprehensive income attributable to shareholders	$ 225	$ 1,198	$ 338	$ 66