INCOME TAXES - THE DEFERRED TAX ASSETS AND LIABILITIES (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Schedule of Deferred Income Tax Assets and Liabilities [Line Items]
Deferred income taxes	$ 160.3	$ 165.6
Prepaid expenses and other current assets
Schedule of Deferred Income Tax Assets and Liabilities [Line Items]
Prepaid expenses and other current assets	70.4	78.7
Other noncurrent assets, net
Schedule of Deferred Income Tax Assets and Liabilities [Line Items]
Other noncurrent assets, net	16.9	41.9
Income taxes payable
Schedule of Deferred Income Tax Assets and Liabilities [Line Items]
Income taxes payable	3.1	4.7
Deferred income taxes
Schedule of Deferred Income Tax Assets and Liabilities [Line Items]
Deferred income taxes	$ 160.3	$ 165.6