PENSION BENEFITS (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Defined Benefit Plan Disclosure [Line Items]
Payments for Repurchase of Common Stock			$ 2,149,000,000	$ 3,650,000,000
United States, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Payments for Repurchase of Common Stock		$ 100,000,000	100,000,000	300,000,000
Service cost	$ 25,000,000	21,000,000	74,000,000	63,000,000
Interest cost	116,000,000	153,000,000	346,000,000	460,000,000
Expected return on plan assets	(284,000,000)	(279,000,000)	(851,000,000)	(837,000,000)
Amortization of prior service (credit)	(11,000,000)	(11,000,000)	(32,000,000)	(33,000,000)
Net periodic benefit (income)	(154,000,000)	(116,000,000)	(463,000,000)	(347,000,000)
Non-US, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	6,000,000	4,000,000	17,000,000	16,000,000
Interest cost	26,000,000	34,000,000	78,000,000	106,000,000
Expected return on plan assets	(84,000,000)	(81,000,000)	(249,000,000)	(248,000,000)
Amortization of prior service (credit)	0	0	0	0
Net periodic benefit (income)	$ (52,000,000)	$ (43,000,000)	$ (154,000,000)	$ (126,000,000)