Earnings Per Share (Details) (USD $) In Thousands, except Share data	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Basic earnings per common share:
Net income	$ 143,391	$ 100,946	$ 415,755	$ 189,447
Preferred stock dividends, deemed dividend and accretion of discount	(7,703)	(29,495)	(23,110)	(88,278)
Net income applicable to common shareholders	135,688	71,451	392,645	101,169
Average common shares issued and outstanding	863,911	716,911	863,542	716,604
Basic earnings per common share	$ 0.16	$ 0.10	$ 0.45	$ 0.14
Diluted earnings per common share
Net income applicable to common shareholders	135,688	71,451	392,645	101,169
Net income applicable to diluted earnings per share	$ 135,688	$ 71,451	$ 392,645	$ 101,169
Average common shares issued and outstanding	863,911	716,911	863,542	716,604
Dilutive potential common shares:
Stock options and restricted stock units	2,646,000	1,764,000	2,938,000	1,711,000
Shares held in deferred compensation plans	1,076,000	892,000	966,000	867,000
Weighted Average Number Diluted Shares Outstanding Adjustment	3,722,000	2,656,000	3,904,000	2,578,000
Total diluted average common shares issued and outstanding	867,633	719,567	867,446	719,182
Diluted earnings (loss) per common share	$ 0.16	$ 0.10	$ 0.45	$ 0.14
Earnings Loss Per Share (Textuals) [Abstract]
Weighted average exercise price options			$ 12.57	$ 18.06
Stock Options [Member]
Earnings Loss Per Share (Textuals) [Abstract]
Options outstanding to purchase common stock shares having antidilutive effect			24,600,000	19,200,000

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

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-Name Emerging Issues Task Force (EITF)

-Number 07-4

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- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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