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Debt (Tables)
 3 Months Ended
Mar. 31, 2013
Debt Disclosure [Abstract]  
Debt Maturing within One Year
Debt maturing within one year consists of the following:
(in Millions)
March 31, 2013
 
December 31, 2012
Short-term debt
$
37.2

 
$
50.6

Current portion of long-term debt
6.0

 
5.7

Total debt maturing within one year
$
43.2

 
$
56.3
Schedule of long-term debt
Long-term debt consists of the following:
(in Millions)
March 31, 2013
 
 
 
 
Interest Rate
Percentage
 
Maturity
Date
 
3/31/2013
 
12/31/2012
Pollution control and industrial revenue bonds (less unamortized discounts of $0.2 and $0.2, respectively)
0.2-6.5%


2013-2035

$
176.7


$
176.7

Senior notes (less unamortized discount of $1.8 and $1.8, respectively)
3.95-5.2%


2019-2022

598.2


598.2

2011 credit agreement (1)
1.2
%
 
2016
 
455.0

 
130.0

Foreign debt
0-10.3%


2013-2023

10.0


9.6

Total long-term debt




$
1,239.9


$
914.5

Less: debt maturing within one year




6.0


5.7

Total long-term debt, less current portion




$
1,233.9


$
908.8


____________________
(1)
Letters of credit outstanding under the 2011 Credit Agreement totaled $73.3 million and available funds under this facility were $971.7 million at March 31, 2013.