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Commitments and Contingencies Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]
The following table provides a reconciliation of changes in the product warranty liability:
 
December 31,
 
2017
 
2016
 
(in millions)
Beginning balance
$
42.9

 
$
36.6

Accruals
20.6

 
16.0

Settlements
(5.6
)
 
(7.3
)
Adjustments to prior period accruals
(9.2
)
 
(2.3
)
Foreign currency translation
0.8

 
(0.1
)
Ending balance
$
49.5

 
$
42.9