Components of Other Assets Included in the Consolidated Balance Sheets (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Deferred Costs Capitalized Prepaid And Other Assets [Line Items]
Derivative instruments	$ 1,972		$ 2,356
Bank Owned Life Insurance	1,547		1,742
Partnership investments	1,657		1,413
Accounts receivable and drafts-in-process	1,155		955
Banker's acceptance	398		726
Investment in Vantiv Holding, LLC	563		576
OREO and other repossessed personal property	329		442
Accrued interest receivable	369		382
Prepaid expenses	80		84
Income tax receivable	10		5
Other	124		182
Total	$ 8,204	[1]	$ 8,863	[1]

[1] At December 31, 2012 and 2011, includes $0 and $30 of cash, $0 and $7 of other short-term investments, $50 and $50 of commercial mortgage loans, $0 and $223 of home equity loans, $0 and $259 of automobile loans, ($5) and ($10) of ALLL, $3 and $4 of other assets, $0 and $4 of other liabilities, $0 and $191 of long-term debt from consolidated VIEs that are included in their respective captions. See Note 10.