ACCOUNTS RECEIVABLE, NET (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounts receivable, net [Abstract]
Gross accounts receivable	$ 983.0	$ 910.0
Less allowance for doubtful accounts	(198.3)	(191.5)
Accounts receivable, net	784.7	718.5
Provision for doubtful accounts	$ 254.8	$ 246.0	$ 255.1