Fair Value Of Assets And Liabilities (Narrative) (Details) (USD $)	3 Months Ended			6 Months Ended
	Jun. 30, 2011	Mar. 31, 2011	Jun. 30, 2010	Jun. 30, 2011		Jun. 30, 2010
Fair Value Of Assets And Liabilities
Goodwill, impairment		$ 10,100,000		$ (10,100,000)	[1],[2]	$ (3,348,000)	[1],[2]
Mortgage loan pools held for trading			621,600,000			621,600,000
Estimated amount of gains or losses included in earnings during the period attributable to changes in instrument-specific credit of loans held for sale	$ 2,800,000		$ 100,000	$ 5,300,000		$ 5,800,000

[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.