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Financial Instruments
9 Months Ended
Sep. 30, 2011
Fair Value Disclosures [Abstract] 
Financial Instruments
Financial Instruments
The carrying values of the Company's financial instruments do not materially differ from the estimated fair values as of September 30, 2011 and December 31, 2010, except for the Company's debt.

The carrying value and fair value of the Company’s long-term debt are as follows: 
 
September 30, 2011
 
December 31, 2010
(dollars in millions)
Carrying Value
 
Fair Value
 
Carrying Value
 
Fair Value
Long-term debt, including current portion
$
2,526.0

 
$
2,349.6

 
$
2,523.6

 
$
2,416.9



The fair value of debt instruments was based on closing or estimated market prices of the Company’s debt at September 30, 2011 and December 31, 2010.