Capital Securities of Subsidiary Trusts and Perpetual Trust Securities (Narrative) (Details) (USD $) In Millions, unless otherwise specified			4 Months Ended	5 Months Ended	7 Months Ended
Sep. 30, 2012	Jun. 30, 2012	Apr. 25, 2012 Pnc Capital Trust D [Member]	Apr. 25, 2012 Yardville Capital Trust III [Member]	May 25, 2012 National City Capital Trust III [Member]	Jul. 30, 2012 Pnc Capital Trust E [Member]	Jul. 30, 2012 National City Capital Trust IV [Member]
Debt Instrument [Line Items]
Trust preferred securities			$ 300.0	$ 6.0	$ 500.0	$ 450.0	$ 517.5
Stated interest rate			6.125%	10.18%	6.625%	7.75%	8.00%
Original scheduled maturity date			Dec. 15, 2033	Jun. 08, 2031	May 25, 2047	Mar. 15, 2038	Sep. 15, 2047
Debt Instrument, Unamortized Discount	$ 95	$ 130

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 1A

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number APB14-1

-Paragraph 31

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant