Borrowed Funds (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total borrowed funds	$ 37,195,000	$ 60,263,000
PNC Capital Trust C
Debt Instrument [Line Items]
Carrrying value - junior subordinated debt	205,000
Trust preferred securities	200,000
Parent Company
Debt Instrument [Line Items]
Total borrowed funds	10,583,000	9,825,000
Bank
Debt Instrument [Line Items]
Total borrowed funds	23,591,000	41,660,000
Senior Notes \| Parent Company
Debt Instrument [Line Items]
Total borrowed funds	9,573,000	8,843,000
Basis adjustments - Fair value accounting hedges	654,000
Senior Notes \| Bank
Debt Instrument [Line Items]
Total borrowed funds	14,698,000	20,167,000
Basis adjustments - Fair value accounting hedges	485,000
Subordinated Debt \| Parent Company
Debt Instrument [Line Items]
Total borrowed funds	805,000	777,000
Basis adjustments - Fair value accounting hedges	57,000
Subordinated Debt \| Bank
Debt Instrument [Line Items]
Total borrowed funds	5,393,000	$ 5,152,000
Basis adjustments - Fair value accounting hedges	$ 414,000
3-month LIBOR \| PNC Capital Trust C
Debt Instrument [Line Items]
Basis Spread on LIBOR Rate - trust preferred securities	0.57%

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- Definition

In order to issue trust preferred securities, a sponsor forms a trust by investing a nominal amount of cash to purchase all of the voting common stock of the trust. The trust issues nonvoting, mandatorily redeemable preferred securities to outside investors in exchange for cash. The proceeds received from the issuance of the preferred securities, together with the cash received for issuing the common stock to the sponsor, is then loaned to the sponsor in exchange for a note which has the same terms as the trust preferred securities. Trust preferred securities possesses characteristics of both equity and debt issues and are generally issued by bank holding companies.

+ References

No definition available.

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- Definition

Amount of short-term and long-term debt and lease obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

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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

Including the current and noncurrent portions, carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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