Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net earnings	$ 290	$ 419
Net unrealized gains (losses) on securities:
Unrealized holding losses on securities arising during the period	(247)	(281)
Reclassification adjustment for realized (gains) losses included in net earnings	2	(11)
Total net unrealized losses on securities	(245)	(292)
Net unrealized losses on cash flow hedges	(4)	(14)
Foreign currency translation adjustments	(1)	0
Other comprehensive loss, net of tax	(250)	(306)
Comprehensive income	$ 40	$ 113