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Warranties
 12 Months Ended
Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]  
Warranties
Warranties

The changes in the accruals for warranties for the years ended December 31, 2013, 2012, and 2011 are as follows:

 
December 31, 2013
 
December 31, 2012
 
December 31, 2011
 
(in millions)
Beginning balance
$
12.5

 
$
13.5

 
$
13.2

Warranty costs incurred
(5.9
)
 
(5.9
)
 
(6.3
)
Warranty originations and revisions
11.9

 
7.7

 
9.1

Warranty expirations
(3.8
)
 
(2.8
)
 
(2.5
)
Ending balance
$
14.7

 
$
12.5

 
$
13.5