PENSION BENEFITS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 21	$ 26
Interest cost	95	77
Expected return on plan assets	(320)	(305)
Amortization of prior service (credit)	(10)	(11)
Net periodic benefit (income)	(214)	(213)
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	5	7
Interest cost	28	19
Expected return on plan assets	(75)	(87)
Net periodic benefit (income)	$ (42)	$ (61)