CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Unaudited (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Other Comprehensive Income
Net income (loss)	$ 421	$ 364	$ 1,424	$ 1,179
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Unrealized holding gains (losses) on available-for-sale securities arising during period	69	22	(178)	19
Reclassification adjustment for net gains included in net income	(4)	(4)	34	(10)
Unrealized holding (losses) gains on cash flow hedge derivatives arising during period	6	8	5	23
Reclassification adjustment for net (gains) losses on cash flow hedge derivatives included in net income	(4)	(14)	(24)	(41)
Net actuarial loss	2	2	6	7
Other comprehensive income (loss), Net of Tax	69	14	(157)	(2)
Comprehensive income	490	378	1,267	1,177
Comprehensive income attributable to noncontrolling interests		1	(9)	1
Comprehensive income attributable to Bancorp	$ 490	$ 377	$ 1,276	$ 1,176