PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Schedule Of Prepaid Expenses And Other Current Assets [Line Items]
Prepaid expenses and other current assets	$ 171.8	$ 241.7
Prepaid expenses and other current assets
Schedule Of Prepaid Expenses And Other Current Assets [Line Items]
Deferred taxes	70.4	78.7
Fair value of derivatives	28.1	36.2
Prepaid expenses	24.1	33.9
Deposits	14.8	16.0
Corporate bonds	0.0	57.7
Other current assets	$ 34.4	$ 19.2