PENSION AND OTHER POSTRETIREMENT BENEFITS - Net Periodic Benefit (Income) Cost Recognized in Other Comprehensive (Income) Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 0
Interest cost	5	5	8
Amortization of prior service (credit) cost	(42)	(74)	(66)
Recognition of actuarial (gains) losses	(4)	(2)	0
Net periodic benefit (income) cost	(41)	(71)	(58)
Actuarial (gains) losses	(54)	(8)	(8)
Prior service (credit) cost	0	0	(65)
Prior service credit recognized during year	(42)	(74)	(66)
Actuarial (gains) losses recognized during year	(4)	(2)	0
Total recognized in Other comprehensive (income) loss	(8)	68	(7)
Total recognized in net periodic benefit (income) cost and Other comprehensive (income) loss	(49)	(3)	(65)
Pension ongoing income—non-service | U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	86	105	99
Interest cost	380	306	461
Expected return on plan assets	(1,281)	(1,220)	(1,135)
Amortization of prior service (credit) cost	(42)	(42)	(42)
Recognition of actuarial (gains) losses	(14)	31	26
Settlements and curtailments	(2)	0	4
Net periodic benefit (income) cost	(873)	(820)	(587)
Actuarial (gains) losses	307	(14)	(9)
Prior service (credit) cost	0	0	0
Prior service credit recognized during year	43	43	42
Actuarial (gains) losses recognized during year	15	0	(30)
Foreign currency translation	0	0	0
Total recognized in Other comprehensive (income) loss	365	29	3
Total recognized in net periodic benefit (income) cost and Other comprehensive (income) loss	(508)	(791)	(584)
Pension ongoing income—non-service | Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	19	26	23
Interest cost	103	77	106
Expected return on plan assets	(278)	(348)	(336)
Amortization of prior service (credit) cost	0	0	0
Recognition of actuarial (gains) losses	537	9	18
Settlements and curtailments	0	0	0
Net periodic benefit (income) cost	381	(236)	(189)
Actuarial (gains) losses	294	(221)	(73)
Prior service (credit) cost	0	(3)	2
Prior service credit recognized during year	(1)	(1)	0
Actuarial (gains) losses recognized during year	(537)	(9)	(18)
Foreign currency translation	204	(1)	19
Total recognized in Other comprehensive (income) loss	(40)	(235)	(70)
Total recognized in net periodic benefit (income) cost and Other comprehensive (income) loss	$ 341	$ (471)	$ (259)