Credit Quality (Summary of Average Impaired Loans and Leases and Interest Income by Class) (Parenthetical) (Detail) $ in Millions	3 Months Ended				6 Months Ended							12 Months Ended
	Jun. 30, 2016 USD ($)		Jun. 30, 2015 USD ($)		Jun. 30, 2016 USD ($)		Jun. 30, 2016		Jun. 30, 2016 number	Jun. 30, 2015 USD ($)		Dec. 31, 2015 number
Financing Receivable, Impaired
Average Recorded Investment	$ 2,045		$ 2,152		$ 1,978					$ 2,184
Number of contracts	2,669	[1],[2]	3,468	[3],[4]			5,679	[1],[2]		7,676	[3],[4]
Commercial Portfolio Segment | Commercial Mortgage Loans, Owner-occupied
Financing Receivable, Impaired
Average Recorded Investment	$ 68	[5]	$ 98	[6]	69	[5]				$ 103	[6]
Number of contracts	3	[1],[2]	6	[3],[4]			10	[1],[2]		13	[3],[4]
Commercial Portfolio Segment | Commercial Mortgage Loans, Owner-occupied | Variable Interest Entity, Primary Beneficiary
Financing Receivable, Impaired
Average Recorded Investment					$ 27					$ 28
Number of contracts							5		5	5		5

[1] Excludes all loans and leases held for sale and loans acquired with deteriorated credit quality which were accounted for within a pool .

[2] Represents number of loans post-modification and excludes loans previously modified in a TDR .

[3] Excludes all loans and leases held for sale and loans acquired with deteriorated credit quality which were accounted for within a pool .

[4] Represents number of loans post-modification and excludes loans previously modified in a TDR .

[5] (a) Exclude s five restructured loans 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 average recorded investment of $ 27 and an immaterial amount of interest income recognized for both the three and six months ended June 30, 2016 .

[6] (a) Excludes five restructured loans 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 average recorded investment of $ 28 and an immaterial amount of interest income recognized for both the three and six months ended June 30, 2015 .