Loan Sale and Servicing Activities and Variable Interest Entities (Non-Consolidated VIEs) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011
Aggregate Assets	$ 115,188		$ 125,671
Aggregate Liabilities	111,603		122,660
PNC Risk of Loss	7,767		7,583
Carrying Value of Assets	7,767		7,583
Carrying Value of Liabilities	480		451
Tax Credit Investments And Other [Member]
Aggregate Assets	6,011	[1]	5,395	[1]
Aggregate Liabilities	2,426	[1]	2,384	[1]
PNC Risk of Loss	954	[1]	837	[1]
Carrying Value of Assets	954	[1],[2]	837	[1],[2]
Carrying Value of Liabilities	389	[1],[3]	352	[1],[3]
Tax Credit Investments And Other [Member] | Equity Investments [Member]
Carrying Value of Assets	946		837
Tax Credit Investments And Other [Member] | Other Assets [Member]
Carrying Value of Assets	8
Commercial Mortgage-Backed Securitizations [Member]
Aggregate Assets	68,215	[4]	75,961	[4]
Aggregate Liabilities	68,215	[4]	75,961	[4]
PNC Risk of Loss	1,851	[4]	2,079	[4]
Carrying Value of Assets	1,851	[4],[5]	2,079	[4],[5]
Residential Mortgage-Backed Securitizations [Member]
Aggregate Assets	40,962	[4]	44,315	[4]
Aggregate Liabilities	40,962	[4]	44,315	[4]
PNC Risk of Loss	4,962	[4]	4,667	[4]
Carrying Value of Assets	4,962	[4],[5]	4,667	[4],[5]
Carrying Value of Liabilities	$ 91	[3],[4]	$ 99	[3],[4]

[1] Aggregate assets and aggregate liabilities are based on limited availability of financial information associated with certain acquired partnerships.

[2] $946 million included in Equity investments and $8 million included in Other assets at June 30, 2012 on our Consolidated Balance Sheet. $837 million included in Equity investments at December 31, 2011 on our Consolidated Balance Sheet.

[3] Included in Other liabilities on our Consolidated Balance Sheet.

[4] Amounts reflect involvement with securitization SPEs where PNC transferred to and/or services loans for a SPE and we hold securities issued by that SPE. Asset amounts equal outstanding liability amounts of the SPEs due to limited availability of SPE financial information. We also invest in other mortgage and asset-backed securities issued by third-party VIEs with which we have no continuing involvement. Further information on these securities is included in Note 8 Investment Securities and values disclosed represent our maximum exposure to loss for those securities’ holdings.

[5] Included in Trading securities, Investment securities, Other intangible assets, and Other assets on our Consolidated Balance Sheet.