Loan Sale and Servicing Activities and Variable Interest Entities (Consolidated VIEs - Carrying Value) (Details) (USD $) In Millions	Sep. 30, 2011		Dec. 31, 2010		Sep. 30, 2010	Dec. 31, 2009
Cash and due from banks	$ 3,982	[1]	$ 3,297	[1]	$ 3,724	$ 4,288
Interest-earning deposits with banks	2,773	[1]	1,610	[1]
Investment securities	62,105	[1]	64,262	[1]
Loans	154,543	[1],[2],[3],[4]	150,595	[1],[2],[3],[4]	150,127
Allowance for loan and lease losses	(4,507)	[1]	(4,887)	[1]	(5,231)	(5,072)
Equity investments	9,915	[1]	9,220	[1]
Other assets	23,246	[1],[2]	20,412	[1],[2]
Total assets	269,470		264,284
Other borrowed funds	5,428	[1]	6,555	[1]
Accrued expenses	3,587	[1]	3,188	[1]
Other liabilities	5,590	[1]	5,192	[1]
Total liabilities	232,228		231,446
Variable Interest Entity, Primary Beneficiary [Member]
Cash and due from banks	6	[1],[5]	2	[1],[5]
Interest-earning deposits with banks	136	[1],[5]	288	[1],[5]
Investment securities	110	[1],[5]	192	[1],[5]
Loans	5,124	[1],[5]	4,645	[1],[5]
Allowance for loan and lease losses	(92)	[1],[5]	(183)	[1],[5]
Equity investments	1,438	[1],[5]	1,177	[1],[5]
Other assets	1,181	[1],[5]	676	[1],[5]
Total assets	7,903	[5]	6,797	[5]
Other borrowed funds	3,819	[1],[5]	3,354	[1],[5]
Accrued expenses	157	[1],[5]	88	[1],[5]
Other liabilities	678	[1],[5]	456	[1],[5]
Total liabilities	4,654	[5]	3,898	[5]
Variable Interest Entity, Primary Beneficiary [Member] | Market Street [Member]
Investment securities	110	[5]	192	[5]
Loans	3,214	[5]	2,520	[5]
Other assets	298	[5]	271	[5]
Total assets	3,622	[5]	2,983	[5]
Other borrowed funds	3,325	[5]	2,715	[5]
Other liabilities	295	[5]	268	[5]
Total liabilities	3,620	[5]	2,983	[5]
Variable Interest Entity, Primary Beneficiary [Member] | Credit Card Securitization Trust [Member]
Interest-earning deposits with banks	127	[5]	284	[5]
Loans	1,910	[5]	2,125	[5]
Allowance for loan and lease losses	(92)	[5]	(183)	[5]
Other assets	7	[5]	9	[5]
Total assets	1,952	[5]	2,235	[5]
Other borrowed funds	287	[5]	523	[5]
Accrued expenses	51	[5]	9	[5]
Total liabilities	338	[5]	532	[5]
Variable Interest Entity, Primary Beneficiary [Member] | Tax Credit Investments [Member]
Cash and due from banks	6	[5],[6]	2	[5],[6]
Interest-earning deposits with banks	9	[5],[6]	4	[5],[6]
Equity investments	1,438	[5],[6]	1,177	[5],[6]
Other assets	876	[5],[6]	396	[5],[6]
Total assets	2,329	[5],[6]	1,579	[5],[6]
Other borrowed funds	207	[5],[6]	116	[5],[6]
Accrued expenses	106	[5],[6]	79	[5],[6]
Other liabilities	383	[5],[6]	188	[5],[6]
Total liabilities	$ 696	[5],[6]	$ 383	[5],[6]

[1] Amounts represent the assets or liabilities of consolidated variable interest entities (VIEs).

[2] Amounts represent items for which the Corporation has elected the fair value option.

[3] Future accretable yield related to purchased impaired loans is not included in loans outstanding.

[4] Net of unearned income, net deferred loan fees, unamortized discounts and premiums, and purchase discounts and premiums totaling $2.4 billion and $2.7 billion atSeptember 30, 2011 and December 31, 2010, respectively.

[5] Amounts represent carrying value on PNC’s Consolidated Balance Sheet.

[6] Amounts primarily represent Low Income Housing Tax Credit (LIHTC) investments.