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Other Current and Non-Current Assets - Components of Other Current and Non-Current Assets (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Other Current Assets And Other Non Current Assets [Line items]    
Prepaid income taxes and income tax receivable $ 66.7 $ 204.8
Asbestos-related current assets 82.6 132.9
Short-term investments 38.2  
Current deferred income taxes 19.9 23.9
Current assets of discontinued operations   12.4
Other 44.0 59.3
Other current assets 251.4 433.3
Other employee benefit-related assets 87.7 79.3
Non-current deferred income taxes 21.4 45.4
Capitalized software costs 13.4 13.3
Environmental receivable 12.3  
Equity method investments 8.6 3.6
Non-current assets of discontinued operations   26.7
Other 29.2 24.7
Other non-current assets $ 172.6 $ 193.0