Loan Sale and Servicing Activities and Variable Interest Entities (Non-Consolidated VIEs) (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
PNC Risk of Loss	$ 27,156	$ 27,077
Carrying Value of Assets Owned by PNC	558,207	557,263
Carrying Value of Liabilities Owned by PNC	508,861	511,451
Variable Interest Entity, Primary Beneficiary
Carrying Value of Assets Owned by PNC	26,998	26,910
Carrying Value of Liabilities Owned by PNC	2,048	2,064
Variable Interest Entity, Primary Beneficiary | Mortgage-Backed Securitizations
PNC Risk of Loss	22,732	22,666
Carrying Value of Assets Owned by PNC	22,735	22,670
Carrying Value of Liabilities Owned by PNC	1	1
Variable Interest Entity, Primary Beneficiary | Tax Credit Investments And Other
PNC Risk of Loss	4,424	4,411
Carrying Value of Assets Owned by PNC	4,263	4,240
Carrying Value of Liabilities Owned by PNC	$ 2,047	$ 2,063