Capital Securities of Subsidiary Trusts and Perpetual Trust Securities (Capital Securities of Subsidiary Trust) (Details) (PNC Capital Trust C [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2012
PNC Capital Trust C [Member]
Debt Instrument [Line Items]
Debt Maturity Date	Jun. 01, 2028
Date Formed	Jun. 01, 1998
Trust Redeemable Period	Jun. 01, 2008
Capital Securities Basis Points		0.57%
Trust preferred securities	$ 200
Debt instrument interest rate	0.806%