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PENSION AND OTHER POSTRETIREMENT BENEFITS 5 (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2021
UNITED STATES
Future Benefit Payments [Abstract]
2021	$ 1,147
2022	1,143
2023	1,139
2024	1,130
2025	1,116
2026-2030	5,246
Funding Policy Paragraph Details [Line Items]
Pension notional amount	3,673	$ 4,463
Foreign Plan [Member]
Future Benefit Payments [Abstract]
2021	240
2022	242
2023	247
2024	252
2025	257
2026-2030	1,365
Funding Policy Paragraph Details [Line Items]
Pension notional amount	564	$ 479
Cash pension contributions	$ 109
Foreign Plan [Member] | Forecast [Member]
Funding Policy Paragraph Details [Line Items]
Contributions to pension plans			$ 85
Other Postretirement Benefits [Member]
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]
Health care cost trend rate assumed for next year	7.00%	7.00%
Rate that the cost trend rate gradually declines to	5.00%	5.00%
Defined Benefit Plan, Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate	2029	2029
Other Postretirement Benefits [Member] | Without Impact of Medicare Subsidy [Member]
Future Benefit Payments [Abstract]
2021	$ 29
2022	28
2023	26
2024	15
2025	14
2026-2030	61
Other Postretirement Benefits [Member] | Net of Medicare Subsidy [Member]
Future Benefit Payments [Abstract]
2021	27
2022	25
2023	24
2024	14
2025	13
2026-2030	$ 57

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Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

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Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status.

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Ultimate trend rate for health care cost for defined benefit postretirement plan.

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Amount of cash outflow for pension benefit. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. Excludes other postretirement benefit.

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