RETIREMENT BENEFITS - Estimated Future Benefit Payments (Details) $ in Millions	Dec. 31, 2023 USD ($)
U.S. \| Pension Plans
Defined Benefit Plan, Postretirement Medical Plan with Prescription Drug Benefits [Abstract]
2024	$ 1,000
2025	1,005
2026	985
2027	962
2028	937
2029–2033	3,974
U.S. \| Postretirement Benefit Plans
Defined Benefit Plan, Postretirement Medical Plan with Prescription Drug Benefits [Abstract]
2024	57
2025	41
2026	39
2027	36
2028	34
2029–2033	131
Non-U.S. \| Pension Plans
Defined Benefit Plan, Postretirement Medical Plan with Prescription Drug Benefits [Abstract]
2024	638
2025	558
2026	553
2027	566
2028	569
2029–2033	3,207
Non-U.S. \| Postretirement Benefit Plans
Defined Benefit Plan, Postretirement Medical Plan with Prescription Drug Benefits [Abstract]
2024	89
2025	93
2026	98
2027	102
2028	107
2029–2033	$ 601

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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