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Standard Product Warranties (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Change in aggregate product warranty liabilities, including accrued costs and loss reserves in excess of deferred revenue    
Beginning reserve $ 16.3 $ 19.9
Current year provision 16.8 12.2
Current year claims (19.4) (15.8)
Ending reserve $ 13.7 $ 16.3