Financial Derivatives (Derivatives Total Notional or Contractual Amounts and Estimated Net Fair Values) (Details) (USD $) In Millions	Jun. 30, 2011		Dec. 31, 2010
Notional/Contract Amount Asset Derivatives designated as hedging instruments	$ 22,741		$ 23,513
Notional/Contract Amount Asset Derivatives not designated as hedging instruments	191,346		188,451
Total Notional / Contract Value of derivative assets	214,087		211,964
Fair Value Asset Derivatives designated as hedging instruments	1,359	[1]	1,255	[1]
Asset Derivatives not designated as hedging instruments Fair Value	4,496	[1]	4,502	[1]
Total Fair Value of derivative assets	5,855	[1]	5,757	[1]
Less: Legally enforceable master netting agreements	3,302	[1]	3,203	[1]
Less: Cash collateral	783	[1]	659	[1]
Total Net Asset Derivatives	1,770	[1]	1,895	[1]
Notional/ Contract Amount Liability Derivatives designated as hedging instruments	4,855		4,761
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	120,614		128,768
Total Notional / Contract Value of derivative Liabilities	125,469		133,529
Liability Derivatives designated as hedging instruments Fair Value	48	[2]	85	[2]
Liability Derivatives not designated as hedging instruments Fair Value	4,815	[2]	4,850	[2]
Total Fair Value of derivative liabilities	4,863	[2]	4,935	[2]
Less: Legally enforceable master netting agreements	3,302	[2]	3,203	[2]
Less: Cash collateral	660	[2]	674	[2]
Total Net Liability Derivatives	901	[2]	1,058	[2]
Fair Value Hedging [Member]
Notional/Contract Amount Asset Derivatives designated as hedging instruments	9,442		9,878
Fair Value Asset Derivatives designated as hedging instruments	928	[1]	878	[1]
Notional/ Contract Amount Liability Derivatives designated as hedging instruments	2,591		1,594
Liability Derivatives designated as hedging instruments Fair Value	39	[2]	32	[2]
Cash Flow Hedging [Member]
Notional/Contract Amount Asset Derivatives designated as hedging instruments	13,299		13,635
Fair Value Asset Derivatives designated as hedging instruments	431	[1]	377	[1]
Notional/ Contract Amount Liability Derivatives designated as hedging instruments	2,264		3,167
Liability Derivatives designated as hedging instruments Fair Value	9	[2]	53	[2]
Residential Mortgage Banking Servicing Interest Rate Contract [Member]
Notional/Contract Amount Asset Derivatives not designated as hedging instruments	114,568		112,236
Asset Derivatives not designated as hedging instruments Fair Value	1,629	[1]	1,490	[1]
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	57,929		66,476
Liability Derivatives not designated as hedging instruments Fair Value	1,414	[2]	1,419	[2]
Commercial Mortgage Banking Credit Default Swaps [Member]
Notional/Contract Amount Asset Derivatives not designated as hedging instruments	145		210
Asset Derivatives not designated as hedging instruments Fair Value	6	[1]	8	[1]
Residential Mortgage Banking Loan Sales Interest Rate Contracts [Member]
Notional/Contract Amount Asset Derivatives not designated as hedging instruments	6,398		11,765
Asset Derivatives not designated as hedging instruments Fair Value	35	[1]	119	[1]
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	2,837		3,585
Liability Derivatives not designated as hedging instruments Fair Value	22	[2]	31	[2]
Customer Related Activities Interest Rate Contracts [Member]
Notional/Contract Amount Asset Derivatives not designated as hedging instruments	59,774		54,060
Asset Derivatives not designated as hedging instruments Fair Value	2,563	[1]	2,611	[1]
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	50,196		49,619
Liability Derivatives not designated as hedging instruments Fair Value	2,668	[2]	2,703	[2]
Customer Related Activities Foreign Exchange Contracts [Member]
Notional/Contract Amount Asset Derivatives not designated as hedging instruments	4,917		3,659
Asset Derivatives not designated as hedging instruments Fair Value	178	[1]	149	[1]
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	5,530		4,254
Liability Derivatives not designated as hedging instruments Fair Value	183	[2]	155	[2]
Customer Related Activities Equity Contracts [Member]
Notional/Contract Amount Asset Derivatives not designated as hedging instruments	202		195
Asset Derivatives not designated as hedging instruments Fair Value	10	[1]	16	[1]
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	142		139
Liability Derivatives not designated as hedging instruments Fair Value	14	[2]	19	[2]
Customer Related Activities Credit Participation Risk Agreements [Member]
Notional/Contract Amount Asset Derivatives not designated as hedging instruments	1,439		1,371
Asset Derivatives not designated as hedging instruments Fair Value	4	[1]	5	[1]
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	1,727		1,367
Liability Derivatives not designated as hedging instruments Fair Value	3	[2]	2	[2]
Other Risk Management Activities Interest Rate Contracts [Member]
Notional/Contract Amount Asset Derivatives not designated as hedging instruments	2,086		3,420
Asset Derivatives not designated as hedging instruments Fair Value	7	[1]	20	[1]
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	393		1,099
Liability Derivatives not designated as hedging instruments Fair Value	2	[2]	9	[2]
Other Risk Management Activities Foreign Exchange Contracts [Member]
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	29		32
Liability Derivatives not designated as hedging instruments Fair Value	6	[2]	4	[2]
Other Risk Management Activities Credit Contracts Default Swaps [Member]
Notional/Contract Amount Asset Derivatives not designated as hedging instruments	238		376
Asset Derivatives not designated as hedging instruments Fair Value	7	[1]	9	[1]
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	200		175
Liability Derivatives not designated as hedging instruments Fair Value	1	[2]	1	[2]
Derivatives Used for Customer-Related Activities [Member]
Notional/Contract Amount Asset Derivatives not designated as hedging instruments	66,332		59,285
Asset Derivatives not designated as hedging instruments Fair Value	2,755	[1]	2,781	[1]
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	57,595		55,379
Liability Derivatives not designated as hedging instruments Fair Value	2,868	[2]	2,879	[2]
Commercial Mortgage Banking Interest Rate Contracts [Member]
Notional/Contract Amount Asset Derivatives not designated as hedging instruments	1,579		1,159
Asset Derivatives not designated as hedging instruments Fair Value	57	[1]	75	[1]
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	1,422		1,813
Liability Derivatives not designated as hedging instruments Fair Value	76	[2]	111	[2]
Other Risk Management Activities Other Contracts [Member]
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	209	[3]	209	[3]
Liability Derivatives not designated as hedging instruments Fair Value	426	[2],[3]	396	[2],[3]
Derivatives Used for Residential Mortgage Banking Activities [Member]
Notional/Contract Amount Asset Derivatives not designated as hedging instruments	120,966		124,001
Asset Derivatives not designated as hedging instruments Fair Value	1,664	[1]	1,609	[1]
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	60,766		70,061
Liability Derivatives not designated as hedging instruments Fair Value	1,436	[2]	1,450	[2]
Derivatives Used for Commercial Mortgage Banking Activities [Member]
Notional/Contract Amount Asset Derivatives not designated as hedging instruments	1,724		1,369
Asset Derivatives not designated as hedging instruments Fair Value	63	[1]	83	[1]
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	1,422		1,813
Liability Derivatives not designated as hedging instruments Fair Value	76	[2]	111	[2]
Derivatives used for other risk management activities [Member]
Notional/Contract Amount Asset Derivatives not designated as hedging instruments	2,324		3,796
Asset Derivatives not designated as hedging instruments Fair Value	14	[1]	29	[1]
Derivative Liability Not Designated As Hedging Instrument Notional Contract Amount	831		1,515
Liability Derivatives not designated as hedging instruments Fair Value	$ 435	[2]	$ 410	[2]

[1] Included in Other Assets on our Consolidated Balance Sheet.

[2] Included in Other Liabilities on our Consolidated Balance Sheet.

[3] Includes PNC's obligation to fund a portion of certain BlackRock LTIP programs.