Condensed Statements of Income - Parent Company Only (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Dividend Received From Nonbank Companies And Related Subsidiaries	$ 1,100		$ 859
Parent Company Only
Dividend Received From Nonbank Companies And Related Subsidiaries	$ 1,094	[1]	$ 859	[1]	$ 1,959	[1]

[1]  The Bancorp’s indirect banking subsidiary paid dividends to the Bancorp’s direct nonbank subsidiary holding company of $1.1 billion, $859 million and $2.0 billion for the years ended December 31, 2014, 2013 and 2012, respectively.