Debt (Tables)

9 Months Ended

Sep. 30, 2011

Debt [Abstract]

Long-term debt

	September 30, 2011			December 31, 2010
Senior Notes due 2019	$	500.0		$	500.0
Senior Notes due 2039		500.0			500.0
Debt discount		(1.2	)		(1.2	)
Adjustment related to interest rate swaps		26.7			1.5
Senior Credit Facility		518.0			141.8
Total long-term debt	$	1,543.5		$	1,142.1