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Inventories (Details) (USD $)
In Millions
Jun. 30, 2011
Dec. 31, 2010
Inventories (at FIFO, which approximates replacement value):    
Raw materials $ 115.0 $ 94.5
Work in process 143.8 112.6
Finished goods 396.9 337.8
Subtotal (at FIFO) 655.7 544.9
Reduction of certain inventories to LIFO basis (53.9) (49.1)
Total 601.8 495.8
Inventories (Textuals) [Abstract]    
U.S. inventories determined by LIFO method $ 136 $ 102