Summarizes the Bancorp's Recorded Investment in Portfolio Loans and Leases by Age and Class (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment 30 To 89 Days Past Due	$ 345	[1],[2]	$ 413	[1],[3]
Past Due 90 Days and Greater	643	[1],[2]	912	[1],[3]
Residential Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment 30 To 89 Days Past Due	73	[1],[2],[4]	87	[1],[3],[5]
Past Due 90 Days and Greater	231	[1],[2],[4]	307	[1],[3],[5]
Residential Mortgage Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Portfolio loans and leases at fair value	92		76
Residential Mortgage Loans | Federal Housing Administration Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment 30 To 89 Days Past Due	81		80
Past Due 90 Days and Greater	378		414
Losses Due To Claim Denials And Curtailments	$ 5		$ 2

[1] Includes accrual and nonaccrual loans and leases.

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

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

[4] Information for current residential mortgage loans includes advances made pursuant to servicing agreements for GNMA mortgage pools whose repayments are insured by the Federal Housing Administration or guaranteed by the Department of Veterans Affairs. As of December 31, 2013, $81 of these loans were 30-89 days past due and $378 were 90 days or more past due. The Bancorp recognized $5 million of losses for the year ended December 31, 2013 due to claim denials and curtailments associated with these advances.

[5] Information for current residential mortgage loans includes advances made pursuant to servicing agreements for GNMA mortgage pools whose repayments are insured by the Federal Housing Administration or guaranteed by the Department of Veterans Affairs. As of December 31, 2012, $80 of these loans were 30-89 days past due and $414 were 90 days or more past due. The Bancorp recognized $2 million of losses for the year ended December 31, 2012 due to claim denials and curtailments associated with these advances.