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Other - Net, Expense (Income) (Details) (USD $)
In Millions
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Nonoperating Income (Expense) [Abstract]    
Interest expense$ 45.0$ 47.2$ 135.9$ 142.3
Investment Income, Interest(22.2)(16.3)(55.5)(37.9)
Other (income)expense60.6(9.2)71.8(138.8)
Nonoperating Income (Expense), Total$ 83.4$ 21.7$ 152.2$ (34.4)