RETIREMENT AND POSTRETIREMENT BENEFIT PLANS - OBLIGATIONS AND FUNDED STATUS (Details) - USD ($) $ in Millions		12 Months Ended
	Jun. 30, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amounts recognized in the consolidated balance sheet:
Deferred credits and other liabilities — pension and postretirement obligations		$ (1,540)	$ (1,763)
Pension Benefits
Amounts recognized in the consolidated balance sheet:
Long-term receivables and other assets, net		192	167
Accrued liabilities		(4)	(9)
Deferred credits and other liabilities — pension and postretirement obligations		(391)	(578)
Total amount recognized in consolidated balance sheet		(203)	(420)
Accumulated other comprehensive loss included the following after-tax balances:
Net loss		(17)	(3)
Prior service cost		0	0
AOCI after-tax balances		(17)	(3)
Changes in the benefit obligation:
Benefit obligation — beginning of year		1,613	2,508
Service cost — benefits earned during the period		8	37	$ 47
Interest cost on projected benefit obligation		35	52	40
Actuarial (gain) loss		(55)	251
Curtailment (gain) loss	$ (124)	0	(278)
Special termination benefits		0	23
Benefits paid		(219)	(948)
Sale of Colombia assets		0	(24)
Settlement due to annuity purchase		(109)	0
Other	$ (278)	0	(8)
Benefit obligation — end of year		1,273	1,613	2,508
Changes in plan assets:
Fair value of plan assets — beginning of year		1,193	1,841
Actual return on plan assets		44	161
Employer contributions		162	146
Benefits paid		(219)	(948)
Payments due to annuity purchase		(109)	0
Other		(1)	(7)
Fair value of plan assets — end of year		1,070	1,193	1,841
Unfunded status:		(203)	(420)
Accumulated Benefit Obligation in Excess of Plan Assets
Projected benefit obligation		963	1,226
Accumulated benefit obligation		960	1,221
Fair value of plan assets		656	670
Plan Assets in Excess of Accumulated Benefit Obligation
Projected benefit obligation		310	387
Accumulated benefit obligation		308	379
Fair value of plan assets		414	523
Postretirement Benefits
Amounts recognized in the consolidated balance sheet:
Long-term receivables and other assets, net		0	0
Accrued liabilities		(71)	(74)
Deferred credits and other liabilities — pension and postretirement obligations		(1,149)	(1,185)
Total amount recognized in consolidated balance sheet		(1,220)	(1,259)
Accumulated other comprehensive loss included the following after-tax balances:
Net loss		163	226
Prior service cost		(50)	(60)
AOCI after-tax balances		113	166
Changes in the benefit obligation:
Benefit obligation — beginning of year		1,259	1,175
Service cost — benefits earned during the period		42	39	24
Interest cost on projected benefit obligation		33	37	36
Actuarial (gain) loss		(54)	73
Curtailment (gain) loss		0	2
Special termination benefits		0	0
Benefits paid		(67)	(73)
Sale of Colombia assets		0	0
Settlement due to annuity purchase		0	0
Other		7	6
Benefit obligation — end of year		1,220	1,259	1,175
Changes in plan assets:
Fair value of plan assets — beginning of year		0	0
Actual return on plan assets		0	0
Employer contributions		59	67
Benefits paid		(67)	(73)
Payments due to annuity purchase		0	0
Other		8	6
Fair value of plan assets — end of year		0	0	$ 0
Unfunded status:		$ (1,220)	$ (1,259)