Goodwill and Other Intangible Assets (Fees from Mortgage and Other Loan Servicing) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Goodwill [Line Items]
Fees from Mortgage and Other Loan Servicing	$ 138	$ 163	$ 414	$ 481

Income from servicing mortgages and other loans including contractually specified servicing fees, late fees and ancillary fees.

No definition available.

Name:	pnc_MortgageAndOtherLoanServicingRevenue
Namespace Prefix:	pnc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration