CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Unaudited - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement Of Income And Comprehensive Income
Net income (loss)	$ 453	$ 602	$ 1,228	$ 1,303
Other Comprehensive Income (Loss), Net of Tax
Unrealized holding gains (losses) on available-for-sale debt securities arising during period	577	(167)	1,007	(627)
Reclassification adjustment for net (gains) losses included in net income	0	0	1	7
Unrealized holding gains (losses) on cash flow hedge derivatives arising during period	190	3	277	(4)
Reclassification adjustment for net gains on cash flow hedge derivatives included in net income	1	0	3	(1)
Reclassification of amounts to net periodic benefit costs	1	1	2	2
Other comprehensive income (loss)	769	(163)	1,290	(623)
Comprehensive income	1,222	439	2,518	680
Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive income attributable to Bancorp	$ 1,222	$ 439	$ 2,518	$ 680