Parent Company Financial Statements (Condensed Statements of Income - Parent Company Only) (Parenthetical) (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Dividend Received From Nonbank Companies And Related Subsidiaries		$ 1,900	$ 1,000
Parent Company Only
Dividend Received From Nonbank Companies And Related Subsidiaries	[1]	$ 1,886	$ 1,040	$ 1,094

[1] (a) The Bancorp’s indirect banking subsidiary paid dividends to the Bancorp’s direct nonbank subsidiary holding company of $1.9 billion , $1.0 billion and $1.1 billion for the years ended December 31, 2016 , 2015 and 2014 , respectively .