RETIREMENT BENEFITS PLANS - Estimated Pension and Other Postretirement Benefit Payments (Details) $ in Millions	Dec. 31, 2023 USD ($)
Pension plans \| United States
Defined Benefit Plans and Other Postretirement Benefit Plans
2024	$ 286
2025	267
2026	257
2027	246
2028	236
2029 - 2033	1,061
Pension plans \| Non-United States plans
Defined Benefit Plans and Other Postretirement Benefit Plans
2024	111
2025	113
2026	116
2027	121
2028	123
2029 - 2033	669
Other postretirement benefits plans
Defined Benefit Plans and Other Postretirement Benefit Plans
2024	18
Medicare prescription drug subsidy 2024	0
2025	17
Medicare prescription drug subsidy 2025	0
2026	16
Medicare prescription drug subsidy 2026	0
2027	19
Medicare prescription drug subsidy 2027	0
2028	18
Medicare prescription drug subsidy 2028	0
2029 - 2033	82
Medicare prescription drug subsidy 2029 - 2033	$ (1)

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 60
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480266/715-60-50-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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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 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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