Borrowed Funds (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total borrowed funds	$ 58,713	$ 30,784
PNC Capital Trust C
Debt Instrument [Line Items]
Carrrying value - junior subordinated debt	205
Trust preferred securities	$ 200
PNC Capital Trust C \| 3-month LIBOR
Debt Instrument [Line Items]
Basis spread on LIBOR rate - trust preferred securities	0.57%
Parent Company
Debt Instrument [Line Items]
Total borrowed funds	$ 13,103	11,351
Bank
Debt Instrument [Line Items]
Total borrowed funds	41,936	16,306
Senior Notes \| Parent Company
Debt Instrument [Line Items]
Total borrowed funds	11,374	10,369
Basis adjustments - fair value accounting hedges	(723)
Senior Notes \| Bank
Debt Instrument [Line Items]
Total borrowed funds	5,283	10,292
Basis adjustments - fair value accounting hedges	(256)
Subordinated Debt \| Parent Company
Debt Instrument [Line Items]
Total borrowed funds	1,524	777
Basis adjustments - fair value accounting hedges	(72)
Subordinated Debt \| Bank
Debt Instrument [Line Items]
Total borrowed funds	4,578	$ 6,014
Basis adjustments - fair value accounting hedges	$ (232)

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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
-Name Accounting Standards Codification
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- Definition

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

+ References

No definition available.

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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
-Publisher FASB
-Name Accounting Standards Codification
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