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Product Warranty (Tables)
 6 Months Ended
Jun. 30, 2017
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]
The activity in warranty reserves for the quarter ended June 30, 2017 and 2016 are summarized in the following table:
 
Quarter Ended June 30,
 
Six Months Ended June 30,
Dollar amounts in millions
2017
 
2016
 
2017
 
2016
Beginning balance
$
24.5

 
$
18.1

 
$
24.1

 
$
21.0

Accrued to expense
0.2

 
0.3

 
0.4

 
0.4

Accrued to other operating credits and charges
2.0

 
10.9

 
5.4

 
10.9

Foreign currency translation
1.2

 
(0.1
)
 
1.4

 
0.5

Payments made
(2.6
)
 
(3.6
)
 
(6.0
)
 
(7.2
)
Total warranty reserves
25.3

 
25.6

 
25.3

 
25.6

Current portion of warranty reserves
(9.0
)
 
(9.0
)
 
(9.0
)
 
(9.0
)
Long-term portion of warranty reserves
$
16.3

 
$
16.6

 
$
16.3

 
$
16.6