SUPPLEMENTAL CASH FLOW INFORMATION (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Debt Conversion [Line Items]
Noncash conversion of zero-coupon convertible debt	$ 8.1	$ 10.3
Fair Value of Assets Acquired	8.8	0
Increase (Decrease) in Accrued Liabilities	(2.7)	0.5
Cash paid during period for:
Interest	55.8	50.5
Income taxes, net of refunds	111.1	164.3
Restricted Stock Awards And Performance Shares Surrendered	$ 6.6	$ 4.6