Components of Other Assets Included in the Consolidated Balance Sheets (Detail) - USD ($) $ in Millions		Dec. 31, 2015	Dec. 31, 2014
Prepaid Expense and Other Assets [Abstract]
Derivative instruments		$ 1,852	$ 2,080
Partnership investments		1,756	1,685
Bank owned life insurance		1,651	1,623
Accounts receivable and drafts-in-process		1,653	1,452
Investment in Vantiv Holding, LLC		360	394
Accrued interest receivable		329	312
OREO and other repossessed personal property		155	236
Income tax receivable			107
Prepaid expenses		101	97
Other		142	255
Total	[1]	$ 7,999	$ 8,241

[1] Includes $152 and $179 of cash and due from banks, $2,537 and $3,378 of portfolio loans and leases, $(28) and $(22) of ALLL, $20 and $25 of other assets, $3 and $5 of other liabilities and $2,493 and $3,434 of long-term debt from consolidated VIEs that are included in their respective captions above at December 31, 2015 and 2014, respectively. For further information, refer to Note 11.