POSTRETIREMENT BENEFITS (Details 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	$ 2,717.2	$ 2,685.9
Service cost	9.1	8.9
Interest cost	86.6	87.7	$ 83.3
Actuarial (gain) loss	171.3	109.1
Benefits paid	(134.7)	(135.6)
Currency translation adjustments	31.1	(6.0)
Benefit obligation at end of year	2,883.3	2,717.2	2,685.9
Other Postretirement Benefit Plans, Defined Benefit
Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	52.2	62.0
Service cost	1.1	1.2	1.2
Interest cost	1.5	1.6	2.3
Actuarial (gain) loss	0.4	(5.1)
Benefits paid	(4.7)	(7.6)
Currency translation adjustments	0.3	0.1
Benefit obligation at end of year	50.8	52.2	62.0
Funded status	(50.8)	(52.2)
U.S. | Other Postretirement Benefit Plans, Defined Benefit
Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	43.6	53.9
Service cost	0.8	0.8
Interest cost	1.2	1.2
Actuarial (gain) loss	(0.6)	(5.1)
Benefits paid	(4.4)	(7.2)
Currency translation adjustments	0.0	0.0
Benefit obligation at end of year	40.6	43.6	53.9
Funded status	(40.6)	(43.6)
Foreign | Other Postretirement Benefit Plans, Defined Benefit
Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	8.6	8.1
Service cost	0.3	0.4
Interest cost	0.3	0.4
Actuarial (gain) loss	1.0	0.0
Benefits paid	(0.3)	(0.4)
Currency translation adjustments	0.3	0.1
Benefit obligation at end of year	10.2	8.6	$ 8.1
Funded status	$ (10.2)	$ (8.6)