Long-Term Debt (Summary of the Bancorp's Long-Term Borrowings) (Parenthetical) (Detail) - USD ($) $ in Millions		Dec. 31, 2016	Dec. 31, 2015		Dec. 31, 2014
Debt Instrument
Long-term debt	[1]	$ 14,388	$ 15,810	[2]
Unamortized debt issuance expense		33	34		$ 36
Amount Qualifying As Tier Two Capital For Regulatory Capital Purposes
Debt Instrument
Long-term debt		2,700	2,400
Amount Qualifying As Tier One Capital Under Basel III Final Rule
Debt Instrument
Long-term debt		$ 0	$ 13

[1] Includes $ 85 and $ 152 of cash and due from banks, $ 1,216 and $ 2,537 of portfolio loans and leases, $ (26) and $ (28) of ALLL, $ 9 and $ 14 of other assets, $ 3 and $ 3 of other liabilities and $ 1,094 and $ 2,487 of long-term debt from consolidated VIEs that are included in their respective captions above at December 31, 2016 and 2015 , respectively. For further information, refer to Note 11.

[2] Upon adoption of ASU 2015-03 on January 1, 2016, the December 31, 2015 Consolidated Balance Sheet was adjusted to reflect the reclassification of $34 of debt issuance costs from other assets to long-term debt. For further inform ation refer to Note 1 .