PENSION AND OTHER POSTRETIREMENT BENEFITS (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amounts recognized in Consolidated Balance Sheet [Abstract]
Postretirement benefit obligations other than pensions	$ (208,000,000)	$ (242,000,000)
Other Postretirement Benefits [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	229,000,000	325,000,000
Service cost	0	0	$ 0
Interest cost	5,000,000	8,000,000	14,000,000
Plan amendments	0	(65,000,000)
Actuarial (gains) losses	(8,000,000)	(8,000,000)
Benefits paid - OPEB	(30,000,000)	(31,000,000)
Benefit obligation at end of year	196,000,000	229,000,000	325,000,000
Defined Benefit Plan, Change in Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Company contributions	0	0
Benefits paid - OPEB	0	0
Fair value of plan assets at end of year	0	0	0
Funded status of plans	(196,000,000)	(229,000,000)
Amounts recognized in Consolidated Balance Sheet [Abstract]
Accrued Liabilities - Current	(25,000,000)	(27,000,000)
Postretirement benefit obligations other than pensions	(171,000,000)	(202,000,000)
Net amount recognized	(196,000,000)	(229,000,000)
Foreign plans excluded from postretirement benefits other than pensions	37,000,000	40,000,000
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Prior service (credit) cost	(92,000,000)	(165,000,000)
Net actuarial (gain) loss	(34,000,000)	(28,000,000)
Net amount recognized	(126,000,000)	(193,000,000)
Defined Benefit Plan Disclosure [Abstract]
Service cost	0	0	0
Interest cost	5,000,000	8,000,000	14,000,000
Amortization of prior service (credit) cost	(74,000,000)	(66,000,000)	(62,000,000)
Recognition of actuarial losses	(2,000,000)	0	0
Net periodic benefit (income) cost	(71,000,000)	(58,000,000)	(48,000,000)
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive (Income) Loss [Abstract]
Actuarial (gains) losses	(8,000,000)	(8,000,000)	(16,000,000)
Prior service (credit) cost	0	(65,000,000)	(2,000,000)
Prior service credit recognized during year	74,000,000	66,000,000	62,000,000
Actuarial (gains) losses recognized during year	2,000,000	0	0
Total recognized in other comprehensive (income) loss	68,000,000	(7,000,000)	44,000,000
Total recognized in net periodic benefit (income) cost and other comprehensive (income) loss	(3,000,000)	(65,000,000)	(4,000,000)
UNITED STATES
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	18,054,000,000	17,283,000,000
Service cost	105,000,000	99,000,000	82,000,000
Interest cost	306,000,000	461,000,000	613,000,000
Plan amendments	0	0
Actuarial (gains) losses	141,000,000	1,331,000,000
Benefits paid	(1,221,000,000)	(1,100,000,000)
Settlements and curtailments	0	(21,000,000)
Foreign currency translation	0	0
Other	6,000,000	1,000,000
Benefit obligation at end of year	17,391,000,000	18,054,000,000	17,283,000,000
Defined Benefit Plan, Change in Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	20,396,000,000	18,995,000,000
Actual return on plan assets	1,344,000,000	2,475,000,000
Company contributions	35,000,000	46,000,000
Benefits paid	(1,221,000,000)	(1,100,000,000)
Settlements and curtailments	0	(21,000,000)
Foreign currency translation	0	0
Other	6,000,000	1,000,000
Fair value of plan assets at end of year	20,560,000,000	20,396,000,000	18,995,000,000
Funded status of plans	3,169,000,000	2,342,000,000
Amounts recognized in Consolidated Balance Sheet [Abstract]
Other Assets	3,528,000,000	2,695,000,000
Accrued Liabilities - Current	(33,000,000)	(29,000,000)
Other Liabilities - Noncurrent	(326,000,000)	(324,000,000)
Net amount recognized	3,169,000,000	2,342,000,000
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Prior service (credit) cost	(92,000,000)	(134,000,000)
Net actuarial (gain) loss	492,000,000	505,000,000
Net amount recognized	400,000,000	371,000,000
Defined Benefit Plan Disclosure [Abstract]
Service cost	105,000,000	99,000,000	82,000,000
Interest cost	306,000,000	461,000,000	613,000,000
Expected return on plan assets	(1,220,000,000)	(1,135,000,000)	(1,117,000,000)
Amortization of prior service (credit) cost	(42,000,000)	(42,000,000)	(42,000,000)
Recognition of actuarial losses	31,000,000	26,000,000	35,000,000
Settlements and curtailments	0	4,000,000	4,000,000
Net periodic benefit (income) cost	(820,000,000)	(587,000,000)	(425,000,000)
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive (Income) Loss [Abstract]
Actuarial (gains) losses	(14,000,000)	(9,000,000)	(277,000,000)
Prior service (credit) cost	0	0	0
Prior service credit recognized during year	43,000,000	42,000,000	42,000,000
Actuarial (gains) losses recognized during year	0	(30,000,000)	(39,000,000)
Foreign currency translation	0	0	0
Total recognized in other comprehensive (income) loss	29,000,000	3,000,000	(274,000,000)
Total recognized in net periodic benefit (income) cost and other comprehensive (income) loss	(791,000,000)	(584,000,000)	(699,000,000)
Foreign Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	7,670,000,000	6,897,000,000
Service cost	26,000,000	23,000,000	22,000,000
Interest cost	77,000,000	106,000,000	142,000,000
Plan amendments	(3,000,000)	2,000,000
Actuarial (gains) losses	(403,000,000)	509,000,000
Benefits paid	(249,000,000)	(246,000,000)
Settlements and curtailments	0	0
Foreign currency translation	(121,000,000)	291,000,000
Other	2,000,000	88,000,000
Benefit obligation at end of year	6,999,000,000	7,670,000,000	6,897,000,000
Defined Benefit Plan, Change in Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	8,450,000,000	7,307,000,000
Actual return on plan assets	166,000,000	918,000,000
Company contributions	101,000,000	116,000,000
Benefits paid	(249,000,000)	(246,000,000)
Settlements and curtailments	0	0
Foreign currency translation	(74,000,000)	253,000,000
Other	2,000,000	102,000,000
Fair value of plan assets at end of year	8,396,000,000	8,450,000,000	7,307,000,000
Funded status of plans	1,397,000,000	780,000,000
Amounts recognized in Consolidated Balance Sheet [Abstract]
Other Assets	2,105,000,000	1,688,000,000
Accrued Liabilities - Current	(14,000,000)	(14,000,000)
Other Liabilities - Noncurrent	(694,000,000)	(894,000,000)
Net amount recognized	1,397,000,000	780,000,000
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Prior service (credit) cost	20,000,000	23,000,000
Net actuarial (gain) loss	397,000,000	629,000,000
Net amount recognized	417,000,000	652,000,000
Defined Benefit Plan Disclosure [Abstract]
Service cost	26,000,000	23,000,000	22,000,000
Interest cost	77,000,000	106,000,000	142,000,000
Expected return on plan assets	(348,000,000)	(336,000,000)	(331,000,000)
Amortization of prior service (credit) cost	0	0	0
Recognition of actuarial losses	9,000,000	18,000,000	88,000,000
Settlements and curtailments	0	0	0
Net periodic benefit (income) cost	(236,000,000)	(189,000,000)	(79,000,000)
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive (Income) Loss [Abstract]
Actuarial (gains) losses	(221,000,000)	(73,000,000)	176,000,000
Prior service (credit) cost	(3,000,000)	2,000,000	0
Prior service credit recognized during year	(1,000,000)	0	0
Actuarial (gains) losses recognized during year	(9,000,000)	(18,000,000)	(88,000,000)
Foreign currency translation	(1,000,000)	19,000,000	14,000,000
Total recognized in other comprehensive (income) loss	(235,000,000)	(70,000,000)	102,000,000
Total recognized in net periodic benefit (income) cost and other comprehensive (income) loss	$ (471,000,000)	$ (259,000,000)	$ 23,000,000