CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Unaudited (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Comprehensive Income
Net income (loss)	$ 340	$ 421	$ 1,098	$ 1,424
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Unrealized holding gains (losses) on available-for-sale securities arising during period	(69)	69	233	(178)
Reclassification adjustment for net (gains) losses included in net income	(3)	(4)	(16)	34
Unrealized holding gains (losses) on cash flow hedge derivatives arising during period	(3)	6	19	5
Reclassification adjustment for net gains on cash flow hedge derivatives included in net income	(7)	(4)	(20)	(24)
Reclassification of amounts to net periodic benefit costs	1	2	3	6
Other comprehensive income (loss), Net of Tax	(81)	69	219	(157)
Comprehensive income	259	490	1,317	1,267
Comprehensive income attributable to noncontrolling interests			2	(9)
Comprehensive income attributable to Bancorp	$ 259	$ 490	$ 1,315	$ 1,276