PENSION BENEFITS (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Percentage of fixed income assets to total Pension Plan assets	50.00%
United States, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 35,000,000	$ 43,000,000
Interest cost	143,000,000	147,000,000
Expected return on plan assets	(357,000,000)	(315,000,000)
Amortization of prior service (credit)	(11,000,000)	(11,000,000)
Net periodic benefit (income)	(190,000,000)	(136,000,000)
Non-US, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	7,000,000	9,000,000
Interest cost	37,000,000	35,000,000
Expected return on plan assets	(115,000,000)	(99,000,000)
Amortization of prior service (credit)	0	0
Net periodic benefit (income)	$ (71,000,000)	$ (55,000,000)