PENSION BENEFITS (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Payments for Repurchase of Common Stock	$ 1,923,000,000	$ 750,000,000
United States, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Payments for Repurchase of Common Stock	100,000,000	100,000,000
Service cost	25,000,000	21,000,000
Interest cost	115,000,000	153,000,000
Expected return on plan assets	(284,000,000)	(279,000,000)
Amortization of prior service (credit)	(11,000,000)	(11,000,000)
Net periodic benefit (income)	(155,000,000)	(116,000,000)
Non-US, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	6,000,000	6,000,000
Interest cost	26,000,000	36,000,000
Expected return on plan assets	(84,000,000)	(84,000,000)
Amortization of prior service (credit)	0	0
Net periodic benefit (income)	$ (52,000,000)	$ (42,000,000)