PENSION BENEFITS (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
United States, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 43,000,000	$ 48,000,000	$ 129,000,000	$ 143,000,000
Interest cost	147,000,000	150,000,000	440,000,000	450,000,000
Expected return on plan assets	(316,000,000)	(306,000,000)	(946,000,000)	(918,000,000)
Amortization of prior service (credit)	(10,000,000)	(11,000,000)	(32,000,000)	(33,000,000)
Net periodic benefit (income)	(136,000,000)	(119,000,000)	(409,000,000)	(358,000,000)
Non-US, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	10,000,000	11,000,000	29,000,000	36,000,000
Interest cost	37,000,000	43,000,000	109,000,000	137,000,000
Expected return on plan assets	(104,000,000)	(92,000,000)	(305,000,000)	(291,000,000)
Amortization of prior service (credit)	(1,000,000)	0	(1,000,000)	(2,000,000)
Net periodic benefit (income)	$ (58,000,000)	$ (38,000,000)	$ (168,000,000)	$ (120,000,000)