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Equity Earnings of Unconsolidated Affiliates, Net of Tax and Net Income Attributable to Noncontrolling Interests (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 9 Months Ended
Jul. 31, 2012
Jul. 31, 2011
Jul. 31, 2012
Affiliates
Jul. 31, 2011
Equity Earnings of Unconsolidated Affiliates, Net of Tax and Net Income Attributable to Noncontrolling Interests (Textual) [Abstract]        
Percentage of investments in affiliates in which company have non controlling interest     20 percent or more  
Number of affiliates in which company has equity interest     7  
Equity earnings of unconsolidated affiliates, net of tax $ 0.5 $ 1.5 $ 2.5 $ 2.0
Dividends received from company's equity method affiliates 0.1 0 0.1 0
Principal balance of loan made to an entity deemed VIE 22.2   22.2  
Outstanding amount of loan 18.4   18.4  
Net income attributable to noncontrolling interests $ 1.0 $ 2.0 $ 1.2 $ 1.4