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	Sep. 30, 2014		Dec. 31, 2013
Total loans and leases	$ 90,515	[1]	$ 88,522	[2]
Home Equity | Consumer Portfolio Segment
Total loans and leases	8,987		9,246
Automobile Loans | Consumer Portfolio Segment
Total loans and leases	12,121		11,984
Credit Card | Consumer Portfolio Segment
Total loans and leases	2,317		2,294
Consumer Other Financing Receivable | Consumer Portfolio Segment
Total loans and leases	366		364
Performing Financing Receivable
Total loans and leases	36,388		36,183
Performing Financing Receivable | Residential Mortgage
Total loans and leases	12,720	[3]	12,423	[3]
Performing Financing Receivable | Home Equity
Total loans and leases	8,902		9,153
Performing Financing Receivable | Automobile Loans
Total loans and leases	12,120		11,982
Performing Financing Receivable | Credit Card
Total loans and leases	2,280		2,261
Performing Financing Receivable | Consumer Other Financing Receivable
Total loans and leases	366		364
Nonperforming Financing Receivable
Total loans and leases	235		293
Nonperforming Financing Receivable | Residential Mortgage
Total loans and leases	112	[3]	165	[3]
Nonperforming Financing Receivable | Home Equity
Total loans and leases	85		93
Nonperforming Financing Receivable | Automobile Loans
Total loans and leases	1		2
Nonperforming Financing Receivable | Credit Card
Total loans and leases	$ 37		$ 33

[1] Excludes $109 of loans measured at fair value.

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

[3] Excludes $109 and $92 of loans measured at fair value at September 30, 2014 and December 31, 2013, respectively.