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Financial Instruments (Tables)
6 Months Ended
Jun. 30, 2012
Fair Value Disclosures [Abstract]  
Fair Value, by Balance Sheet Grouping
The carrying value and fair value of the Company’s long-term debt and other financing arrangements are as follows: 
 
June 30, 2012
 
December 31, 2011
(dollars in millions)
Carrying Value
 
Fair Value
 
Carrying Value
 
Fair Value
Long-term debt, including current portion
$
2,552.2

 
$
2,547.7

 
$
2,533.6

 
$
2,460.5

Other financing arrangements
48.3

 
48.5

 
47.9

 
47.2

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Table Text Block]
As of June 30, 2012, the following assets were measured at fair value:
 
 
 
Fair Value Measurements Using
 
 
(dollars in millions)
June 30, 2012
 
Quoted Prices in Active Markets for Identical Assets (Level 1)
 
Significant Other Observable Inputs (Level 2)
 
Significant Unobservable Inputs (Level 3)
 
Impairment Losses
Customer relationship intangible
$

 
$

 
$

 
$

 
$
(4.3
)
Property
5.5

 

 

 
5.5

 
(8.7
)
Impairment losses
 
 
 
 
 
 
 
 
$
(13.0
)