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Equity And Comprehensive Earnings (Loss) (Narrative) (Details) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	May 31, 2012	May 31, 2011	May 31, 2012
Stockholders' Equity Note [Abstract]
Maximum noncontrolling interest percentage in subsidiaries	100.00%	100.00%	100.00%
Maximum number of shares to repurchase	20.0		20.0
Repurchases of common stock	0	0
Common stock that can be repurchased in the future	6.2		6.2
Treasury stock reissued under equity compensation plan as Class A common shares	0		0.3

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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