Debt (Tables)

3 Months Ended

Mar. 31, 2013

Debt Disclosure [Abstract]

Summary of Debt Instruments

Our debt consisted of the following (in millions):

	March 31, 2013			December 31, 2012
Short-term debt
Senior Credit Facility	$	—		$	100.0
Other short-term debt		—			0.1
Total short-term debt	$	—		$	100.1
Long-term debt
Senior Notes due 2014	$	250.0		$	250.0
Senior Notes due 2019		500.0			500.0
Senior Notes due 2021		300.0			300.0
Senior Notes due 2039		500.0			500.0
Term Loan		123.9			138.6
Debt discount		(1.7	)		(1.7	)
Adjustment related to interest rate swaps		30.6			33.9
Total long-term debt	$	1,702.8		$	1,720.8