Commitments and Guarantees (Net Outstanding Standby Letters of Credit) (Details) (Financial Standby Letter of Credit [Member], USD $) In Billions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Financial Standby Letter of Credit [Member]
Loss Contingencies [Line Items]
Net outstanding standby letters of credit	$ 10.5	$ 10.5
Internal credit ratings (as a percentage of portfolio) - Pass	95.00%	96.00%
Internal credit ratings (as a percentage of portfolio) - Below pass	5.00%	4.00%
Standby letters of credit - remarketing programs	$ 5.9	$ 6.6

Amount of maximum potential amount of future payments PNC could be required to make under outstanding standby letters of credit (including risk participations in standby letters of credit) that support remarketing programs.

No definition available.

Name:	pnc_StandbyLettersOfCreditAndRiskParticipationsInStandbyLettersOfCreditAndBankersAcceptancesRemarketingPrograms
Namespace Prefix:	pnc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant