Summarizes the Bancorp's Recorded Investment in Portfolio Loans and Leases by Age and Class (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2014		Jun. 30, 2014		Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due
Financing Receivable Recorded Investment 30 To 89 Days Past Due	$ 274	[1],[2]	$ 274	[1],[2]	$ 345	[1],[3]
Past Due 90 Days and Greater	499	[1],[2]	499	[1],[2]	643	[1],[3]
Residential Mortgage
Financing Receivable, Recorded Investment, Past Due
Financing Receivable Recorded Investment 30 To 89 Days Past Due	76	[1],[2],[4]	76	[1],[2],[4]	73	[1],[3],[5]
Past Due 90 Days and Greater	177	[1],[2],[4]	177	[1],[2],[4]	231	[1],[3],[5]
Residential Mortgage Loans
Financing Receivable, Recorded Investment, Past Due
Portfolio loans and leases at fair value	99		99		92
Residential Mortgage Loans | Federal Housing Administration Loan
Financing Receivable, Recorded Investment, Past Due
Financing Receivable Recorded Investment 30 To 89 Days Past Due	90		90		81
Past Due 90 Days and Greater	333		333		378
Losses Due To Claim Denials And Curtailments	$ 2		$ 7		$ 5

[1] Includes accrual and nonaccrual loans and leases.

[2] Excludes $99 of loans measured at fair value.

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

[4] Information for current residential mortgage loans includes loans whose repayments are insured by the Federal Housing Administration or guaranteed by the Department of Veterans Affairs. As of June 30, 2014, $90 of these loans were 30-89 days past due and $333 were 90 days or more past due. The Bancorp recognized $2 and $7 of losses on these insured of guaranteed loans during the three and six months ended June 30, 2014, respectively, due to claim denials and curtailments associated with these loans.

[5] Information for current residential mortgage loans includes loans 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 of losses on these insured or guaranteed loans for the year ended December 31, 2013 due to claim denials and curtailments associated with these loans.