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Guarantees and Indemnifications (Tables)
 3 Months Ended
Mar. 31, 2013
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]
The activity in warranty reserves for the first three months of 2013 and 2012 are summarized in the following table:
 
Quarter Ended March 31,
Dollar amounts in millions
2013
 
2012
Beginning balance
$
21.4

 
$
30.3

Accrued to expense
0.3

 
0.3

Payments made
(2.3
)
 
(2.7
)
Total warranty reserves
19.4

 
27.9

Current portion of warranty reserves
(12.0
)
 
(12.0
)
Long-term portion of warranty reserves
$
7.4

 
$
15.9