PENSION AND POSTRETIREMENT BENEFIT PLANS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Pension, Postretirement And Postemployment Liabilities Statement [Line Items]
Non-current pension liabilities	$ 490		$ 600
Defined contribution plan expense	44	$ 42
Pension Benefits [Member]
Pension, Postretirement And Postemployment Liabilities Statement [Line Items]
Service cost - benefits earned during the period	6	6
Interest cost on projected benefit obligation	48	51
Expected return on plan assets	(103)	(104)
Amortization of prior service credits	(1)	(1)
Amortization of net actuarial (gain)/loss	21	19
Curtailments and settlements	33	22
Special termination benefits		1
Net periodic benefit cost/(credit)	$ 4	$ (6)