Long-Term Compensation (Details) (USD $)	6 Months Ended
Jun. 30, 2011
Share Option Activity Details [Abstract]
Number of options	1,438,514
Number of options acquired	9,052,566
Number of options settled	(124,278)
Number of Options Exercised	(18,678)
Number of options forfieted	(58,317)
Weighted average exercise price	$ 66.89
Weighted Average Exercise Price of Acquired Options	$ 30.66
Weighted average exercise price - forfeited	$ 97.09
Weighted Average Exercise Price of Options Exercised	$ 18.55
Weighted average exercise price - settled	$ 71.64
Options exercisable	8,278,170
Restricted Stock Grant Award Activity [Abstract]
Number of restricted stock grants	0
AMB awards	1,228,944
Number of restricted stock grants - vested	(8,913)
Number of restricted stock grants - forfeited	(1,877)
Weighted average original value	$ 34.07
Full Value Compensation Awards Activity Details [Abstract]
Number of full value awards	1,863,420
Number of full value awards - acquired	89,864
Number of full value awards - granted	980,051
Number of full value awards - distributed	(526,693)
Number of full value awards - settled	(149,053)
Number of full value awards - forfeited	(147,109)
Weighted average original value	$ 30.84
Full Value Compensation Awards Activity (Textuals) [Abstract]
Restricted share units granted	674,050
Contingent perfomance shares and perfomance shares granted	280,525
Full value awards, number of shares range, lower range percent	0.00%
Full value awards, number of shares range, upper range percent	$ 20000.00%

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Value of full value compensation awards for the period

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Number of Full value awards - Distributed

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Number of Full value awards - Forfeited

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Number of Full value awards - Granted

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Weighted Average Original Value

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Number of Full value awards

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contingent perfomance shares and perfomance shares granted

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Restricted share units granted

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Number Of Full Value Awards - Settled

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Number of restricted stock grants - acquired

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Number of restricted stock grants - forfeited

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Number of restricted stock grants - vested

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The number of shares into which fully or partially vested stock options outstanding as of the balance-sheet date can be currently converted under the option plan.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
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The decrease in the number of reserved shares that could potentially be issued attributable to the exercise or conversion during the reporting period of previously issued stock options under the option plan.

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The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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The weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated during the reporting period due to noncompliance with plan terms during the reporting period.

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The addition or reduction in the number of reserved shares that could potentially be issued under the option plan attributable to reasons other than grants, exercises, forfeitures, and expirations during the reporting period.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance-sheet date, including vested options.

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The weighted average price as of the beginning of the year at which grantees can acquire the shares reserved for issuance under the stock option plan.

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