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Inventories (Details) (USD $)
In Millions
Sep. 30, 2011
Dec. 31, 2010
Notes to Financial Statements [Abstract]  
Raw materials$ 181.9$ 166.5
Work-in-process801.2575.9
Finished goods, including parts and subassemblies1,360.21,190.5
Other12.412.1
Inventory, gross2,355.71,945.0
Excess of current standard costs over LIFO costs(101.1)(97.7)
Allowances(76.9)(68.0)
Total inventories$ 2,177.7$ 1,779.3