Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net earnings	$ 177	$ 165	$ 589	$ 622
Net unrealized gains (losses) on securities:
Unrealized holding gains (losses) on securities arising during the period	(64)	(231)	(55)	(698)
Reclassification adjustment for realized (gains) losses included in net earnings	7	3	31	8
Total net unrealized gains (losses) on securities	(57)	(228)	(24)	(690)
Net unrealized gains (losses) on cash flow hedges:
Unrealized holding gains (losses) on cash flow hedges arising during the period	(7)	(21)	(20)	(27)
Reclassification adjustment for investment income included in net earnings	6	0	15	(2)
Total net unrealized gains (losses) on cash flow hedges	(1)	(21)	(5)	(29)
Foreign currency translation adjustments	(1)	(5)	2	(2)
Other comprehensive loss, net of tax	(59)	(254)	(27)	(721)
Comprehensive income (loss)	$ 118	$ (89)	$ 562	$ (99)