Debt (Tables)

9 Months Ended

Sep. 30, 2012

Schedule Of Long-Term Debt

	September 30, 2012			December 31, 2011
	(Millions)
Credit Agreement
Revolving credit facility, weighted-average variable interest rate of 1.48% and 1.69%, respectively, due November 10, 2016 (a)	$	300.0		$	497.0
Term Loan Agreement
Term loan facility, variable interest rate of 1.62%, due July 2, 2014		140.0			—
Debt Securities
Issued March 13, 2012, interest at 4.95% payable semi-annually, due April 1, 2022		350.0			—
Issued September 30, 2010, interest at 3.25% payable semi-annually, due October 1, 2015		250.0			250.0
Unamortized discount		(1.7	)		(0.2	)
Total long-term debt	$	1,038.3		$	746.8

(a) $150.0 million has been swapped to a fixed rate obligation with effective fixed rates ranging from 2.94% to 2.99%, for a net effective rate of 2.84% on the $300.0 million of outstanding debt under our revolving credit facility as of September 30, 2012. $450.0 million of debt was swapped to a fixed-rate obligation with effective fixed-rates ranging from 2.94% to 5.19%, for a net effective rate of 4.86% on the $497.0 million of outstanding debt under our revolving credit facility as of December 31, 2011.

Future Maturities Of Long-Term Debt

	Debt Maturities
	(Millions)
2012	$	—
2013		—
2014		140.0
2015		250.0
Thereafter		650.0
		1,040.0
Unamortized discount		(1.7	)
Total	$	1,038.3