Condensed Statements of Income - Parent Company Only (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Dividends from subsidiaries:
Nonbank subsidiaries	$ 859		$ 2,000
Total interest income	3,973		4,107		4,218
Expenses
Interest	412		512		661
Other	185		169		194
Income (Loss) Before Income Taxes	2,598		2,210		1,831
Applicable income tax benefit	772		636		533
Net Income attributable to Bancorp	1,836		1,576		1,297
Parent Company [Member]
Dividends from subsidiaries:
Nonbank subsidiaries	859	[1]	1,959	[1]	1,677	[1]
Interest on loans to subsidiaries	14		17		29
Total interest income	873		1,976		1,706
Expenses
Interest	178		215		216
Other	36		61		25
Total expenses	214		276		241
Income (Loss) Before Income Taxes	659		1,700		1,465
Applicable income tax benefit	(74)		(96)		(79)
Income (Loss) Before Change in Undistributed Earnings of Subsidiaries	733		1,796		1,544
Change in undistributed earnings (loss)	1,103		(220)		(247)
Net Income attributable to Bancorp	$ 1,836		$ 1,576		$ 1,297

[1] The Bancorp’s indirect banking subsidiary paid dividends to the Bancorp’s direct nonbank subsidiary holding company of $859 million, $2.0 billion and $2.0 billion for the years ended 2013, 2012, and 2011, respectively.