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Guarantees and Indemnifications (Tables)
 12 Months Ended
Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]
The activity in warranty reserves for the last three years is summarized in the following table.
 
  
Year ended December 31,
Dollar amounts in millions
2013
 
2012
 
2011
Beginning balance
$
21.4

 
$
30.3

 
$
29.5

Accrued to expense during the year
2.7

 
4.5

 
13.7

Credited to other operating credits and charges
17.7

 
(1.8
)
 
—

Payments made
(12.5
)
 
(11.6
)
 
(12.9
)
Total warranty reserves
29.3

 
21.4

 
30.3

Current portion
(12.0
)
 
(12.0
)
 
(12.0
)
Long term portion
$
17.3

 
$
9.4

 
$
18.3