Credit Quality (Summary of the Bancorp's Nonperforming Loans and Leases by Class) (Detail) - USD ($) $ in Millions		Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases	[1],[2]	$ 437	$ 437
OREO and other repossessed property		43	52
Nonperforming portfolio assets	[1],[2]	480	489
Commercial Portfolio Segment
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		305	306
Commercial Portfolio Segment | Commercial and Industrial Loans
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		263	276
Commercial Portfolio Segment | Commercial Mortgage Loans, Owner-occupied
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		10	19
Commercial Portfolio Segment | Commercial Mortgage Loans, Nonowner-Occupied
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		3	7
Commercial Portfolio Segment | Commercial Leases
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		29	4
Residential Mortgage Loans
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		28	30
Consumer Portfolio Segment
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		104	101
Consumer Portfolio Segment | Home Equity
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		71	74
Consumer Portfolio Segment | Automobile Loans
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		5	1
Consumer Portfolio Segment | Credit Card
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		27	26
Consumer Portfolio Segment | Other Consumer Loans
Financing Receivable, Modifications
Nonperforming portfolio assets		$ 1	$ 0

[1] Excludes $ 23 a nd $ 6 of nonaccrual loans held for sale at June 30, 2018 and December 31, 2017 , respectively.

[2] Includes $ 4 and $ 3 of nonaccrual government insured commercial loans whose repayments are insured by the SBA a t June 30, 2018 and Dec ember 31, 2017 , respectively, of which $ 2 and $ 3 are restructured nonaccrual government insured commercial loans a t June 30, 2018 and December 31, 2017 , respectively .