Summary of the Bancorp's Nonperforming Loans and Leases by Class (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
Financing Receivable, Modifications [Line Items]
Nonperforming Loans and Leases	$ 620	[1],[2]	$ 751	[1],[2]
OREO and other repossessed property	176	[3]	229	[3]
Commercial Portfolio Segment
Financing Receivable, Modifications [Line Items]
Nonperforming Loans and Leases	385		458
Commercial Portfolio Segment | Commercial and Industrial Loans
Financing Receivable, Modifications [Line Items]
Nonperforming Loans and Leases	260		281
Commercial Portfolio Segment | Commercial Mortgage Loans, Owner Occupied
Financing Receivable, Modifications [Line Items]
Nonperforming Loans and Leases	71	[4]	95	[4]
Commercial Portfolio Segment | Commercial Mortgage Loans, Non Owner Occupied
Financing Receivable, Modifications [Line Items]
Nonperforming Loans and Leases	48		48
Commercial Portfolio Segment | Commercial Construction
Financing Receivable, Modifications [Line Items]
Nonperforming Loans and Leases	2		29
Commercial Portfolio Segment | Commercial Leases
Financing Receivable, Modifications [Line Items]
Nonperforming Loans and Leases	4		5
Residential Mortgage Loans
Financing Receivable, Modifications [Line Items]
Nonperforming Loans and Leases	112		166
Consumer Portfolio Segment
Financing Receivable, Modifications [Line Items]
Nonperforming Loans and Leases	123		127
Consumer Portfolio Segment | Home Equity
Financing Receivable, Modifications [Line Items]
Nonperforming Loans and Leases	85		93
Consumer Portfolio Segment | Automobile Loans
Financing Receivable, Modifications [Line Items]
Nonperforming Loans and Leases	1		1
Consumer Portfolio Segment | Credit Card
Financing Receivable, Modifications [Line Items]
Nonperforming Loans and Leases	$ 37		$ 33

[1] Excludes $7 and $6 of nonaccrual loans held for sale at September 30, 2014 and December 31, 2013, respectively.

[2] Includes $9 and $10 of nonaccrual government insured commercial loans whose repayments are insured by the SBA at September 30, 2014 and December 31, 2013, respectively, and $3 and $2 of restructured nonaccrual government insured commercial loans at September 30, 2014 and December 31, 2013, respectively.

[3] Excludes $85 and $77 of OREO related to government insured loans at September 30, 2014 and December 31, 2013, respectively.

[4] Excludes $21 of restructured nonaccrual loans at both September 30, 2014 and December 31, 2013 associated with a consolidated VIE in which the Bancorp has no continuing credit risk due to the risk being assumed by a third party.