Credit Quality (Summary of the Bancorp's Nonaccrual Loans and Leases by Class) (Detail) - USD ($) $ in Millions		Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases	[1],[2]	$ 348	$ 437
OREO and other repossessed personal property		48	54
Nonperforming portfolio assets	[1],[2]	395	489
Excludes OREO Related to Government Insured Loans
Financing Receivable, Modifications
OREO and other repossessed personal property		47	52
Commercial Portfolio Segment
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		228	306
Commercial Portfolio Segment | Commercial and Industrial Loans
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		193	276
Commercial Portfolio Segment | Commercial Mortgage Loans, Owner-Occupied
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		11	19
Commercial Portfolio Segment | Commercial Mortgage Loans, Nonowner-Occupied
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		2	7
Commercial Portfolio Segment | Commercial Leases
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		22	4
Residential Mortgage Loans
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		22	30
Consumer Portfolio Segment
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		98	101
Consumer Portfolio Segment | Home Equity
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		69	74
Consumer Portfolio Segment | Automobile Loans
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		1	1
Consumer Portfolio Segment | Credit Card
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		27	26
Consumer Portfolio Segment | Other Consumer Loans and Leases
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases		$ 1	$ 0

[1] Includes $ 6 and $ 3 of nonaccrual government insured commercial loans whose repayments are insured by the SBA at December 31, 2018 and 2017 , respectively, of which $ 2 and $ 3 are restructured nonaccrual government insured commercial loans at December 31, 2018 and 2017 , respectively .

[2] Excludes $ 16 and $ 6 of nonaccrual loans and leases held for sale at December 31, 2018 and 2017 , respectively.