PENSION AND POSTRETIREMENT EMPLOYEE BENEFIT PLANS - Change in Benefit Obligation, Plan Assets and Funded Status (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
U.S. Postretirement Benefit Plan
Change in Projected benefit Obligation
Projected benefit obligation, beginning of year	$ 48	$ 52
Service cost	0	0	$ 0
Interest cost	1	2	2
Employee contributions	1	1
Settlements	0	0
Benefits paid	(5)	(6)
Actuarial (gains) losses	(4)	(1)
Currency translation adjustments	0	0
Projected benefit obligation, end of year	41	48	52
Change in Plan Assets
Fair value of plan assets, beginning of year	0	0
Actual return on plan assets	0	0
Employee contributions	1	1
Company contributions	4	5
Settlements	0	0
Benefits paid	(5)	(6)
Currency translation adjustments	0	0
Fair value of plan assets, end of year	0	0	0
Funded Status at end of year	(41)	(48)
Recognized as:
Accrued and other current liabilities	(5)	(6)
Other non-current liabilities	(36)	(42)
U.S. Plan | Pension Benefit Plans
Change in Projected benefit Obligation
Projected benefit obligation, beginning of year	234	230
Service cost	2	2	2
Interest cost	7	8	8
Employee contributions	0	0
Settlements	0	0
Benefits paid	(16)	(15)
Actuarial (gains) losses	(13)	9
Currency translation adjustments	0	0
Projected benefit obligation, end of year	214	234	230
Change in Plan Assets
Fair value of plan assets, beginning of year	206	181
Actual return on plan assets	(11)	30
Employee contributions	0	0
Company contributions	8	10
Settlements	0	0
Benefits paid	(16)	(15)
Currency translation adjustments	0	0
Fair value of plan assets, end of year	187	206	181
Funded Status at end of year	(27)	(28)
Recognized as:
Accrued and other current liabilities	0	0
Other non-current liabilities	(27)	(28)
Non-U.S. Plans | Pension Benefit Plans
Change in Projected benefit Obligation
Projected benefit obligation, beginning of year	254	230
Service cost	3	3	3
Interest cost	5	5	6
Employee contributions	0	0
Settlements	(2)	(1)
Benefits paid	(5)	(4)
Actuarial (gains) losses	(10)	(9)
Currency translation adjustments	(10)	30
Projected benefit obligation, end of year	235	254	230
Change in Plan Assets
Fair value of plan assets, beginning of year	155	128
Actual return on plan assets	(2)	7
Employee contributions	0	0
Company contributions	7	7
Settlements	(2)	(1)
Benefits paid	(5)	(4)
Currency translation adjustments	(6)	18
Fair value of plan assets, end of year	147	155	$ 128
Funded Status at end of year	(88)	(99)
Recognized as:
Accrued and other current liabilities	(2)	(2)
Other non-current liabilities	$ (86)	$ (97)