SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounting Policies [Abstract]
Balance at beginning of period	$ 75.4	$ 67.0	$ 63.2
Provision for warranty expense	66.1	41.9	42.6
Settlements of warranty claims	(41.7)	(33.5)	(38.8)
Balance at end of period	$ 99.8	$ 75.4	$ 67.0