RETIREMENT BENEFITS PLANS - Estimated Pension and Other Postretirement Benefit Payments (Details) $ in Millions	Dec. 31, 2021 USD ($)
Pension plans \| United States
Defined Benefit Plans and Other Postretirement Benefit Plans
2022	$ 303
2023	296
2024	281
2025	276
2026	265
2027 - 2031	1,176
Pension plans \| Foreign Plan
Defined Benefit Plans and Other Postretirement Benefit Plans
2022	106
2023	107
2024	111
2025	113
2026	118
2027 - 2031	642
Other postretirement benefits plans
Defined Benefit Plans and Other Postretirement Benefit Plans
2022	25
Medicare prescription drug subsidy 2022	0
2023	21
Medicare prescription drug subsidy 2023	0
2024	20
Medicare prescription drug subsidy 2024	0
2025	18
Medicare prescription drug subsidy 2025	0
2026	17
Medicare prescription drug subsidy 2026	0
2027 - 2031	94
Medicare prescription drug subsidy 2027 - 2031	$ (1)

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

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Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

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Amount of prescription drug subsidy receipt expected after fifth fiscal year following current fiscal year.

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of prescription drug subsidy receipt expected in next fiscal year following current fiscal year.

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Amount of prescription drug subsidy receipt expected in fifth fiscal year following current fiscal year.

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Amount of prescription drug subsidy receipt expected in fourth fiscal year following current fiscal year.

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Amount of prescription drug subsidy receipt expected in third fiscal year following current fiscal year.

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Amount of prescription drug subsidy receipt expected in second fiscal year following current fiscal year.

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