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, 2014		Dec. 31, 2013
Total loans and leases	$ 89,976	[1],[2]	$ 88,522	[3],[4]
Home Equity | Consumer Portfolio Segment
Total loans and leases	8,886		9,246
Automobile Loans | Consumer Portfolio Segment
Total loans and leases	12,037		11,984
Credit Card | Consumer Portfolio Segment
Total loans and leases	2,401		2,294
Consumer Other Financing Receivable | Consumer Portfolio Segment
Total loans and leases	418		364
Performing Financing Receivable | Consumer Portfolio Segment
Total loans and leases	35,811		36,183
Performing Financing Receivable | Residential Mortgage | Residential Mortgage Loans
Total loans and leases	12,204	[5]	12,423	[5]
Performing Financing Receivable | Home Equity | Consumer Portfolio Segment
Total loans and leases	8,793		9,153
Performing Financing Receivable | Automobile Loans | Consumer Portfolio Segment
Total loans and leases	12,036		11,982
Performing Financing Receivable | Credit Card | Consumer Portfolio Segment
Total loans and leases	2,360		2,261
Performing Financing Receivable | Consumer Other Financing Receivable | Consumer Portfolio Segment
Total loans and leases	418		364
Nonperforming Financing Receivable | Consumer Portfolio Segment
Total loans and leases	212		293
Nonperforming Financing Receivable | Residential Mortgage | Residential Mortgage Loans
Total loans and leases	77	[5]	165	[5]
Nonperforming Financing Receivable | Home Equity | Consumer Portfolio Segment
Total loans and leases	93		93
Nonperforming Financing Receivable | Automobile Loans | Consumer Portfolio Segment
Total loans and leases	1		2
Nonperforming Financing Receivable | Credit Card | Consumer Portfolio Segment
Total loans and leases	$ 41		$ 33

[1] Excludes $108 of residential mortgage loans measured at fair value, and includes $874 of leveraged leases, net of unearned income.

[2] Excludes $108 of loans measured at fair value.

[3] Excludes $92 of residential mortgage loans measured at fair value, and includes $881 of leveraged leases, net of unearned income.

[4] Excludes $92 of loans measured at fair value.

[5] Excludes $108 and $92 of loans measured at fair value at December 31, 2014 and 2013, respectively