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	Jun. 30, 2012		Dec. 31, 2011		Jun. 30, 2011
Total loans and leases	$ 82,283	[1],[2],[3]	$ 80,953	[4],[5],[6]	$ 77,908	[7],[8],[9]
Performing Financing Receivable
Total loans and leases	35,361		35,101		34,086
Performing Financing Receivable | Residential Mortgage
Total loans and leases	11,093	[10]	10,332	[10]	9,518	[10]
Performing Financing Receivable | Home Equity
Total loans and leases	10,323		10,665		10,990
Performing Financing Receivable | Automobile Loans
Total loans and leases	11,736		11,825		11,312
Performing Financing Receivable | Credit Card
Total loans and leases	1,901		1,930		1,806
Performing Financing Receivable | Consumer Other Financing Receivable
Total loans and leases	308		349		460
Nonperforming Financing Receivable
Total loans and leases	359		380		386
Nonperforming Financing Receivable | Residential Mortgage
Total loans and leases	260	[10]	275	[10]	272	[10]
Nonperforming Financing Receivable | Home Equity
Total loans and leases	54		54		58
Nonperforming Financing Receivable | Automobile Loans
Total loans and leases	3		2		3
Nonperforming Financing Receivable | Credit Card
Total loans and leases	42		48		50
Nonperforming Financing Receivable | Consumer Other Financing Receivable
Total loans and leases			$ 1		$ 3

[1] Excludes $76 of residential mortgage loans measured at fair value, and includes $967 of leveraged leases, net of unearned income.

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

[3] Includes $1 of government insured commercial loans 30-89 days past due and accruing whose repayments are insured by the Small Business Administration at June 30, 2012 and an immaterial amount of government insured commercial loans 90 days past due and still accruing

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

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

[6] 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.

[7] Excludes $59 of residential mortgage loans measured at fair value, includes $1,015 of leveraged leases, net of unearned income.

[8] Excludes $59 of loans measured at fair value.

[9] Includes $1 of government insured loans 30-89 days past due and accruing of government insured commercial loans whose repayments are insured by the Small Business Administration at June 30, 2011 and an immaterial amount of government insured commercial loans 90 days past due and still accruing.

[10] Excludes $76, $65, and $59 of loans measured at fair value at June 30, 2012, December 31, 2011, and June 30, 2011, respectivel