Commitments and Guarantees (Analysis of Indemnification and Repurchase Liability for Asserted and Unasserted Claims) (Details) (USD $)	6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010
Residential Mortgage [Member]
Recourse obligations, beginning balance	$ 144,000,000	[1]	$ 229,000,000	[1]
Reserve adjustments, net	35,000,000	[1]	50,000,000	[1]
Losses - loan repurchases and settlements	(84,000,000)	[1]	(120,000,000)	[1]
Recourse obligations, ending balance	95,000,000	[1]	159,000,000	[1]
Repurchase obligations - sold loan portfolios	130,700,000,000		152,700,000,000
Home Equity Loans Lines [Member]
Recourse obligations, beginning balance	150,000,000	[2]	41,000,000	[2]
Reserve adjustments, net	3,000,000	[2]	20,000,000	[2]
Losses - loan repurchases and settlements	(98,000,000)	[2]	(9,000,000)	[2]
Recourse obligations, ending balance	55,000,000	[2]	52,000,000	[2]
Repurchase obligations - sold loan portfolios	4,600,000,000		7,200,000,000
Total Repurchase and Indemnification Obligations [Member]
Recourse obligations, beginning balance	294,000,000		270,000,000
Reserve adjustments, net	38,000,000		70,000,000
Losses - loan repurchases and settlements	(182,000,000)		(129,000,000)
Recourse obligations, ending balance	$ 150,000,000		$ 211,000,000

[1] Repurchase obligation associated with sold loan portfolios of $130.7 billion and $152.7 billion at June 30, 2011 and June 30, 2010, respectively.

[2] Repurchase obligation associated with sold loan portfolios of $4.6 billion and $7.2 billion at June 30, 2011 and June 30, 2010, respectively. PNC is nolonger engaged in the brokered home equity business, which was acquired with National City.