Credit Quality (Summary of the Bancorp's Nonaccrual Loans and Leases by Class) (Detail) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases	$ 618,000,000	$ 348,000,000
OREO and other repossessed personal property	62,000,000	47,000,000
Nonperforming Portfolio Assets	680,000,000	395,000,000
Commercial Portfolio Segment
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases	397,000,000	228,000,000
Commercial Portfolio Segment \| Commercial and Industrial Loans
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases	338,000,000	193,000,000
Commercial Portfolio Segment \| Commercial Mortgage Loans, Owner-Occupied
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases	29,000,000	11,000,000
Commercial Portfolio Segment \| Commercial Mortgage Loans, Nonowner-Occupied
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases	1,000,000	2,000,000
Commercial Portfolio Segment \| Commercial Construction Loans
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases	1,000,000	0
Commercial Portfolio Segment \| Commercial Leases
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases	28,000,000	22,000,000
Residential Mortgage Loans
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases	91,000,000	22,000,000
Consumer Portfolio Segment
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases	130,000,000	98,000,000
Consumer Portfolio Segment \| Home Equity
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases	94,000,000	69,000,000
Consumer Portfolio Segment \| Indirect secured consumer loans
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases	7,000,000	1,000,000
Consumer Portfolio Segment \| Credit Card
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases	27,000,000	27,000,000
Consumer Portfolio Segment \| Other Consumer Loans
Financing Receivable, Modifications
Nonaccrual portfolio loans and leases	$ 2,000,000	$ 1,000,000

Nonperforming portfolio assets.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Reflects the carrying amount of loans deemed to be questionable as to collection on which no interest is continuing to be recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5111-111524

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- Definition

Carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10(4))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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