XML 48 R23.htm IDEA: XBRL DOCUMENT v2.4.0.6
Financial Assets and Financial Liabilities Measured at Fair Value (Tables)
9 Months Ended
Sep. 30, 2012
Fair Value Disclosures [Abstract]  
Carrying values and estimated fair values of long-term debt, including current maturities
The carrying values and estimated fair values of long-term debt, including current maturities, at September 30, 2012 and December 31, 2011 follow:
 
 
 
September 30, 2012
 
December 31, 2011
(in millions)
 
Carrying Value
 
Fair Value (Level 2)
 
Carrying Value
 
Fair Value (Level 2)
Total long-term debt
 
$
1,494.2

 
$
1,662.5

 
$
1,567.5

 
$
1,702.4

Fair values for derivatives
 
 
Fair Value
As of
September 30, 2012
 
Fair Value
As of
December 31, 2011
(in millions)
 
(Level 2)
 
(Level 2)
Interest rate swaps — net asset (liability) position
 
$
20.6

 
$
3.3