Summary of the Credit Risk Profile of the Bancorp's Residential Mortgage and Consumer Portfolio Segments by Class (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Notes Receivable Net	$ 85,706	[1],[2]	$ 80,953	[3],[4],[5]
Performing Financing Receivable
Notes Receivable Net	35,986		35,101
Performing Financing Receivable | Residential Mortgage [Member]
Notes Receivable Net	11,704	[6]	10,332	[6]
Performing Financing Receivable | Home Equity
Notes Receivable Net	9,965		10,665
Performing Financing Receivable | Automobile Loans
Notes Receivable Net	11,970		11,825
Performing Financing Receivable | Credit Card
Notes Receivable Net	2,058		1,930
Performing Financing Receivable | Consumer Other Financing Receivable
Notes Receivable Net	289		349
Nonperforming Financing Receivable
Notes Receivable Net	332		380
Nonperforming Financing Receivable | Residential Mortgage [Member]
Notes Receivable Net	237	[6]	275	[6]
Nonperforming Financing Receivable | Home Equity
Notes Receivable Net	53		54
Nonperforming Financing Receivable | Automobile Loans
Notes Receivable Net	2		2
Nonperforming Financing Receivable | Credit Card
Notes Receivable Net	39		48
Nonperforming Financing Receivable | Consumer Other Financing Receivable
Notes Receivable Net	$ 1		$ 1

[1] Excludes $76 of loans measured at fair value.

[2] Includes an immaterial amount of government insured commercial loans 30-89 days and 90 days past due and accruing whose repayments are insured by the Small Business Administration at December 31, 2012.

[3] Excludes $65 of residential mortgage loans measured at fair value, and includes $1,022 of leveraged leases, net of unearned income.

[4] Excludes $65 of loans measured at fair value.

[5] Includes an immaterial amount of government insured commercial loans 30-89 and 90 days past due and accruing whose repayments are insured by the Small Business Administration at December 31, 2011.

[6] Excludes $76 and $65 of loans measured at fair value at December 31, 2012 and 2011, respectively.