Intangible Assets (Schedule Of Gross Goodwill And Accumulated Impairment Losses And Write-Offs Detailed By Reportable Segments) (Details) (USD $) In Thousands	3 Months Ended	6 Months Ended				12 Months Ended
	Mar. 31, 2011	Jun. 30, 2011		Jun. 30, 2010		Dec. 31, 2010	Dec. 31, 2009
Gross goodwill		$ 333,654		$ 333,654		$ 333,654	$ 333,654
Accumulated impairments		(114,123)		(104,023)		(104,023)	(100,675)
Accumulated divestiture related write-offs		(83,848)		(67,451)		(67,451)	(67,451)
Goodwill		135,683		162,180		162,180	165,528
Additions
Goodwill, impairment loss	10,100	(10,100)	[1],[2]	(3,348)	[1],[2]
Divestitures		(16,397)
Net change in goodwill		(26,497)		(3,348)
Non-Strategic [Member]
Gross goodwill		197,971		197,971		197,971	197,971
Accumulated impairments		(114,123)		(104,023)		(104,023)	(100,675)
Accumulated divestiture related write-offs		(83,848)		(67,451)		(67,451)	(67,451)
Goodwill				26,497		26,497	29,845
Additions
Goodwill, impairment loss		(10,100)		(3,348)
Divestitures		(16,397)
Net change in goodwill		(26,497)		(3,348)
Regional Banking [Member]
Gross goodwill		38,262		38,262		38,262	38,262
Accumulated impairments
Accumulated divestiture related write-offs
Goodwill		38,262		38,262		38,262	38,262
Additions
Goodwill, impairment loss
Divestitures
Net change in goodwill
Capital Markets [Member]
Gross goodwill		97,421		97,421		97,421	97,421
Accumulated impairments
Accumulated divestiture related write-offs
Goodwill		97,421		97,421		97,421	97,421
Additions
Goodwill, impairment loss
Divestitures
Net change in goodwill

[1] See Note 17 - Restructuring, Repositioning, and Efficiency for further details related to goodwill impairments.

[2] See Note 2 - Acquisitions and Divestitures for further details regarding goodwill related to divestitures.