PENSION AND POSTRETIREMENT EMPLOYEE BENEFIT PLANS - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2018 USD ($)
Postretirement Benefit Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan contributions made	$ 3
Estimated Company contributions in current fiscal year	6
U.S. Plan | Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan contributions made	4
Estimated Company contributions in current fiscal year	5
Non-U.S. Plan | Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan contributions made	6
Estimated Company contributions in current fiscal year	$ 7