Summarizes the Bancorp's Recorded Investment in Impaired Loans and Related Allowance by Class (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014		Dec. 31, 2013
Impaired Financing Receivable Unpaid Principal Balance
Impaired Financing Receivable With Related Allowance Unpaid Principal Balance	$ 2,317		$ 2,729
Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance	977		891
Unpaid Principal Balance	3,294		3,620
Impaired Financing Receivable Recorded Investment Abstract
Impaired Financing Receivable With Related Allowance Recorded Investment	2,140		2,539
Impaired Financing Receivable With No Related Allowance Recorded Investment	844		814
Recorded Investment	2,984	[1]	3,353	[2]
Allowance	382		367
Commercial Portfolio Segment | Commercial and Industrial Loans
Impaired Financing Receivable Unpaid Principal Balance
Impaired Financing Receivable With Related Allowance Unpaid Principal Balance	640		870
Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance	271		181
Impaired Financing Receivable Recorded Investment Abstract
Impaired Financing Receivable With Related Allowance Recorded Investment	536		759
Impaired Financing Receivable With No Related Allowance Recorded Investment	223		177
Allowance	179		145
Commercial Portfolio Segment | Commercial Mortgage Loans, Owner Occupied
Impaired Financing Receivable Unpaid Principal Balance
Impaired Financing Receivable With Related Allowance Unpaid Principal Balance	56	[3]	85	[4]
Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance	105		106
Impaired Financing Receivable Recorded Investment Abstract
Impaired Financing Receivable With Related Allowance Recorded Investment	46	[3]	74	[4]
Impaired Financing Receivable With No Related Allowance Recorded Investment	94		98
Allowance	6	[3]	11	[4]
Commercial Portfolio Segment | Commercial Mortgage Loans, Non Owner Occupied
Impaired Financing Receivable Unpaid Principal Balance
Impaired Financing Receivable With Related Allowance Unpaid Principal Balance	103		154
Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance	189		154
Impaired Financing Receivable Recorded Investment Abstract
Impaired Financing Receivable With Related Allowance Recorded Investment	79		134
Impaired Financing Receivable With No Related Allowance Recorded Investment	174		147
Allowance	5		14
Commercial Portfolio Segment | Commercial Construction
Impaired Financing Receivable Unpaid Principal Balance
Impaired Financing Receivable With Related Allowance Unpaid Principal Balance	48		68
Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance	61		77
Impaired Financing Receivable Recorded Investment Abstract
Impaired Financing Receivable With Related Allowance Recorded Investment	45		54
Impaired Financing Receivable With No Related Allowance Recorded Investment	42		63
Allowance	1		5
Commercial Portfolio Segment | Commercial Leases
Impaired Financing Receivable Unpaid Principal Balance
Impaired Financing Receivable With Related Allowance Unpaid Principal Balance	4		12
Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance	3		14
Impaired Financing Receivable Recorded Investment Abstract
Impaired Financing Receivable With Related Allowance Recorded Investment	4		12
Impaired Financing Receivable With No Related Allowance Recorded Investment	3		14
Allowance	3
Residential Mortgage Loans
Impaired Financing Receivable Unpaid Principal Balance
Impaired Financing Receivable With Related Allowance Unpaid Principal Balance	1,033		1,081
Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance	301		313
Impaired Financing Receivable Recorded Investment Abstract
Impaired Financing Receivable With Related Allowance Recorded Investment	999		1,052
Impaired Financing Receivable With No Related Allowance Recorded Investment	264		273
Allowance	134		139
Consumer Portfolio Segment | Home Equity
Impaired Financing Receivable Unpaid Principal Balance
Impaired Financing Receivable With Related Allowance Unpaid Principal Balance	354		377
Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance	44		43
Impaired Financing Receivable Recorded Investment Abstract
Impaired Financing Receivable With Related Allowance Recorded Investment	354		373
Impaired Financing Receivable With No Related Allowance Recorded Investment	42		39
Allowance	41		39
Consumer Portfolio Segment | Automobile Loans
Impaired Financing Receivable Unpaid Principal Balance
Impaired Financing Receivable With Related Allowance Unpaid Principal Balance	21		23
Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance	3		3
Impaired Financing Receivable Recorded Investment Abstract
Impaired Financing Receivable With Related Allowance Recorded Investment	20		23
Impaired Financing Receivable With No Related Allowance Recorded Investment	2		3
Allowance	3		3
Consumer Portfolio Segment | Credit Card
Impaired Financing Receivable Unpaid Principal Balance
Impaired Financing Receivable With Related Allowance Unpaid Principal Balance	54		59
Impaired Financing Receivable Recorded Investment Abstract
Impaired Financing Receivable With Related Allowance Recorded Investment	54		58
Allowance	10		11
Consumer Portfolio Segment | Consumer Other Financing Receivable
Impaired Financing Receivable Unpaid Principal Balance
Impaired Financing Receivable With Related Allowance Unpaid Principal Balance	4
Impaired Financing Receivable Recorded Investment Abstract
Impaired Financing Receivable With Related Allowance Recorded Investment	$ 3

[1] Includes $914, $1,201 and $422, respectively, of commercial, residential mortgage and consumer TDRs on accrual status; $202, $62 and $53, respectively, of commercial, residential mortgage and consumer TDRs on nonaccrual status.

[2] Includes $869, $1,241 and $444, respectively, of commercial, residential mortgage and consumer TDRs on accrual status; $228, $84 and $52, respectively, of commercial, residential mortgage and consumer TDRs on nonaccrual status. Excludes five restructured loans at 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, with an unpaid principal balance of $28, a recorded investment of $28, and an allowance of $11.

[3] Excludes five restructured loans at June 30, 2014 associated with a consolidated VIE in which the Bancorp has no continuing credit risk due to the risk being assumed by a third party, with an unpaid principal balance of $28, a recorded investment of $28, and an allowance of $10.

[4] Excludes five restructured loans at 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, with an unpaid principal balance of $28, a recorded investment of $28, and an allowance of $11.