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Product Warranty (Tables)
 9 Months Ended
Sep. 30, 2017
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]
The activity in warranty reserves for the quarter ended September 30, 2017 and 2016 are summarized in the following table:
 
Quarter Ended September 30,
 
Nine Months Ended September 30,
Dollar amounts in millions
2017
 
2016
 
2017
 
2016
Beginning balance
$
25.3

 
$
25.6

 
$
24.1

 
$
21.0

Accrued to expense
0.2

 
0.2

 
0.6

 
0.6

Accrued to other operating credits and charges
—

 
—

 
5.4

 
10.9

Accrued to discontinued operations
1.5

 
—

 
1.5

 
—

Foreign currency translation
0.6

 
0.1

 
2.0

 
0.6

Payments made
(1.6
)
 
(4.8
)
 
(7.6
)
 
(12.0
)
Total warranty reserves
26.0

 
21.1

 
26.0

 
21.1

Current portion of warranty reserves
(9.0
)
 
(9.0
)
 
(9.0
)
 
(9.0
)
Long-term portion of warranty reserves
$
17.0

 
$
12.1

 
$
17.0

 
$
12.1