Capital Securities of Subsidiary Trusts and Perpetual Trust Securities (Perpetual Trust Securities Summary) (Capital Securities of Subsidiaries Trusts) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014
Debt Instrument [Line Items]
Percentage Of LLC Common Voting Securities	100.00%
Perpetual Trusts Noncontrolling Interest	$ 981,000,000
PNC Preferred Funding Trust II [Member]
Debt Instrument [Line Items]
Fixed to Floating Rate Of Non Cumulative Exchangeable Trust securities	1.463%
Private Placement	500,000,000
Date Formed	Mar. 01, 2007
PNC Preferred Funding Trust I [Member]
Debt Instrument [Line Items]
Fixed to Floating Rate Of Non Cumulative Exchangeable Trust securities	1.891%
Private Placement	$ 500,000,000
Date Formed	Dec. 31, 2006