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	Mar. 31, 2013		Dec. 31, 2012
Total loans and leases	$ 85,595	[1],[2],[3]	$ 85,706	[4],[5]
Performing Financing Receivable
Total loans and leases	35,498		35,986
Performing Financing Receivable | Residential Mortgage
Total loans and leases	11,789	[6]	11,704	[6]
Performing Financing Receivable | Home Equity
Total loans and leases	9,677		9,965
Performing Financing Receivable | Automobile Loans
Total loans and leases	11,739		11,970
Performing Financing Receivable | Credit Card
Total loans and leases	2,004		2,058
Performing Financing Receivable | Consumer Other Financing Receivable
Total loans and leases	289		289
Nonperforming Financing Receivable
Total loans and leases	312		332
Nonperforming Financing Receivable | Residential Mortgage
Total loans and leases	221	[6]	237	[6]
Nonperforming Financing Receivable | Home Equity
Total loans and leases	50		53
Nonperforming Financing Receivable | Automobile Loans
Total loans and leases	2		2
Nonperforming Financing Receivable | Credit Card
Total loans and leases	39		39
Nonperforming Financing Receivable | Consumer Other Financing Receivable
Total loans and leases			$ 1

[1] Excludes $81 of residential mortgage loans measured at fair value, and includes $866 of leveraged leases, net of unearned income.

[2] Excludes $81 of loans measured at fair value.

[3] 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 SBA at March 31, 2013.

[4] Excludes $76 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 SBA at December 31, 2012.

[6] Excludes $81 and $76 of loans measured at fair value at March 31, 2013 and December 31, 2012, respectively.