DEBT (Tables)

12 Months Ended

Dec. 31, 2011

Debt Disclosure [Abstract]

Short-term borrowings and current portion of long-term debt

Short-term borrowings and current portion of long-term debt at December 31, 2011 and 2010 consisted of the following:

	December 31, 2011		December 31, 2010
Zero-coupon convertible subordinated notes	$	135.5	$	286.7
Term loan, current	—		75.0
Total short-term borrowings and current portion of long-term debt	$	135.5	$	361.7

Long-term debt

Long-term debt at December 31, 2011 and 2010 consisted of the following:

	December 31, 2011		December 31, 2010
Revolving credit facility	$	560.0	$	—
Senior notes due 2013	350.5		350.9
Senior notes due 2015	250.0		250.0
Senior notes due 2016	325.0		325.0
Senior notes due 2020	600.0		600.0
Term loan, non-current	—		300.0
Other long-term debt	—		0.8
Total long-term debt	$	2,085.5	$	1,826.7