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Commitments and Contingencies (Litigation and Environmental) (Narrative) (Details)
In Millions, unless otherwise specified
9 Months Ended 9 Months Ended
Jun. 30, 2011
USD ($)
Sep. 30, 2010
BRL
Jun. 30, 2011
Environmental [Member]
USD ($)
Sep. 30, 2010
Environmental [Member]
USD ($)
Brazilian anticompetitive civil fines imposed $ 115.0 179.2    
Accrual for environmental loss contingencies     83.2 87.0
Sites on which final settlement has not been reached 30      
Accruals for environmental loss contingencies, maximum payout period, years     30  
Accruals for environmental loss contingencies, minimum exposure     83  
Accruals for environmental loss contingencies, maximum exposure     $ 97