Equity (Narrative) (Details) - USD ($)	2 Months Ended	4 Months Ended		12 Months Ended
	Mar. 15, 2013	May. 04, 2015	Apr. 19, 2013	Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012	May. 05, 2010
Debt Instrument [Line Items]
Dividends distributed to preferred shareholders				$ 220,000,000		$ 232,000,000		$ 237,000,000
Stock Issued During Period, Shares, Dividend Reinvestment Plan				300,000		300,000		400,000
Preferred stock issued, value				$ 0	[1]	$ 0	[1]	$ 496,000,000
Preferred stock redemption, value				$ 500,000,000				150,000,000
Redemption Of Noncontrolling Interests								$ 375,000,000
Common stock, issued				542,000,000		541,000,000
Stock Repurchase Plan 2014 [Member]
Debt Instrument [Line Items]
Shares Repurchased Under Stock Repurchase Program				4,400,000		13,500,000
Stock Repurchase Plan 2015 [Member]
Debt Instrument [Line Items]
Stock Repurchase Program, Number Of Shares Authorized To Be Repurchased				100,000,000
Stock Repurchase Program, Remaining Number Of Shares Authorized To Be Repurchased				82,100,000
Shares Repurchased Under Stock Repurchase Program				17,900,000
Series L Preferred Stock [Member]
Debt Instrument [Line Items]
Depositary Shares Issued Value			6,000,000
Preferred Stock Dividend Rate Percentage									9.875%
Debt Instrument, Basis Spread on Variable Rate - LIBOR Plus								6.33%
Preferred stock redemption, shares			1,500
Preferred stock redemption, value								$ 150,000,000
Series K Preferred Stock [Member]
Debt Instrument [Line Items]
Preferred Stock Dividend Rate Percentage									8.25%
Debt Instrument, Basis Spread on Variable Rate - LIBOR Plus								4.22%
Depositary Shares		500,000
Preferred stock redemption, shares		50,000
Preferred stock redemption, value				$ 500,000,000
TARP Warrant [Member]
Debt Instrument [Line Items]
Number of warrants or rights outstanding				13,400,000		16,900,000				16,900,000
Exercise price per share of warrants or rights outstanding				$ 67.33
Class Of Warrant Or Right Exercised				3,500,000
Common stock, issued				1,100,000
PNC Preferred Funding Trust II [Member]
Debt Instrument [Line Items]
Private Placement REIT				$ 500,000,000
Initial Fixed To Floating Rate Of Non Cumulative Exchangeable Trust Securities				6.113%
Fixed to Floating Rate Of Non Cumulative Exchangeable Trust securities				1.735%
Percentage Of LLC Common Voting Securities				100.00%
Private Placement By LLC				$ 500,000,000
Redemption Value of Trust Preferred Security				100,000
PNC Preferred Funding Trust I [Member]
Debt Instrument [Line Items]
Private Placement REIT				$ 500,000,000
Initial Fixed To Floating Rate Of Non Cumulative Exchangeable Trust Securities				6.517%
Fixed to Floating Rate Of Non Cumulative Exchangeable Trust securities				2.162%
Percentage Of LLC Common Voting Securities				100.00%
Redemption Value of Trust Preferred Security				$ 100,000
Shares Issued To Exercising Warrant Holders [Member]
Debt Instrument [Line Items]
Common Stock, Capital Shares Reserved For Future Issuance				93,000,000
PNC Preferred Funding Trust I and Trust II
Debt Instrument [Line Items]
Perpetual Trusts Noncontrolling Interest				$ 981,000,000
PNC Preferred Funding Trust III
Debt Instrument [Line Items]
Redemption Of Noncontrolling Interests	$ 375,000,000
Distribution Rate Of Non Cumulative Exchangeable Trust securities	8.70%

[1] Par value less than $.5 million at each date.