Loan Sale and Servicing Activities and Variable Interest Entities (Non-Consolidated VIEs) (Details) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Aggregate Assets	$ 377,348,000,000	$ 123,165,000,000
Aggregate Liabilities	372,709,000,000	118,605,000,000
PNC Risk of Loss	9,330,000,000	7,205,000,000
Carrying Value of Assets Owned by PNC	9,374,000,000	7,239,000,000
Carrying Value of Liabilities Owned by PNC	696,000,000	782,000,000
Commercial Mortgage-Backed Securitizations [Member]
Aggregate Assets	45,797,000,000	53,436,000,000
Aggregate Liabilities	45,797,000,000	53,436,000,000
PNC Risk of Loss	1,415,000,000	1,550,000,000
Carrying Value of Assets Owned by PNC	1,415,000,000	1,550,000,000
Carrying Value of Liabilities Owned by PNC	0	1,000,000
Residential Mortgage-Backed Securitizations [Member]
Aggregate Assets	323,975,000,000	62,236,000,000
Aggregate Liabilities	323,975,000,000	62,236,000,000
PNC Risk of Loss	5,678,000,000	3,385,000,000
Carrying Value of Assets Owned by PNC	5,678,000,000	3,385,000,000
Carrying Value of Liabilities Owned by PNC	1,000,000	4,000,000
Tax Credit Investments And Other [Member]
Aggregate Assets	7,576,000,000	7,493,000,000
Aggregate Liabilities	2,937,000,000	2,933,000,000
PNC Risk of Loss	2,237,000,000	2,270,000,000
Carrying Value of Assets Owned by PNC	2,281,000,000	2,304,000,000
Carrying Value of Liabilities Owned by PNC	$ 695,000,000	$ 777,000,000