Debt (Tables)

6 Months Ended

Jun. 30, 2012

Debt [Abstract]

Debt

	June 30, 2012			December 31, 2011
Short-term debt
Credit facility	$	—		$	143.0
Other short-term debt		3.4			0.3
Total short-term debt	$	3.4		$	143.3
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		145.4			—
Debt discount		(1.8	)		(1.8	)
Adjustment related to interest rate swaps		32.9			27.8
Total long-term debt	$	1,726.5		$	1,576.0