VIE (Investments in Qualified Affordable Housing Tax Credits) (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Other noninterest expense
Schedule of Equity Method Investments
Pre-tax investment and impairment losses	[1]	$ 45	$ 36
Applicable income tax expense
Schedule of Equity Method Investments
Tax credits and other benefits		$ (52)	$ (56)

[1] (a) The Bancorp did not recognize impairment losses resulting from the forfeiture or ineligibility of tax credi ts or other circumstances during both the three months ended March 31, 2018 and 2017 .