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Consolidated Statement Of Shareholders' Equity (Parenthetical) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Nov. 30, 2012
Nov. 30, 2011
Nov. 30, 2010
Statement of Stockholders' Equity [Abstract]      
Change in derivative financial instruments, tax $ 0.6 $ 1.0 $ 1.2
Unrealized components of pension plans, tax 42.4 26.8 3.6
Shares issued, tax benefit $ 13.3 $ 12.5 $ 17.5