Borrowed Funds (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Jun. 30, 1998
Debt Instrument [Line Items]
Carrying value	$ 58,601	$ 69,711
PNC Capital Trust C
Debt Instrument [Line Items]
Trust preferred securities			$ 200
Parent Company
Debt Instrument [Line Items]
Carrying value	28,352	23,971
Bank
Debt Instrument [Line Items]
Carrying value	30,249	45,740
Senior debt | Parent Company
Debt Instrument [Line Items]
Basis adjustments - fair value accounting hedges	(753)
Carrying value	27,369	22,221
Senior debt | Bank
Debt Instrument [Line Items]
Basis adjustments - fair value accounting hedges	(90)
Carrying value	5,128	4,615
Subordinated debt | Parent Company
Debt Instrument [Line Items]
Basis adjustments - fair value accounting hedges	(70)
Carrying value	777	1,544
Subordinated debt | Bank
Debt Instrument [Line Items]
Basis adjustments - fair value accounting hedges	(144)
Carrying value	3,121	3,125
Junior subordinated debt | Parent Company
Debt Instrument [Line Items]
Carrying value	$ 206	$ 206