PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Estimated future benefit payments for pension and other postretirement benefit plans (Details) $ in Millions	Dec. 31, 2025 USD ($)
Estimated future benefit payments for funded and unfunded plans
2026	$ 468
2027	467
2028	476
2029	467
2030	493
2031-2035	2,561
Pension plans
Estimated future benefit payments for funded and unfunded plans
2026	447
2027	449
2028	459
2029	452
2030	479
2031-2035	2,496
Other postretirement benefit plans
Estimated future benefit payments for funded and unfunded plans
2026	21
2027	18
2028	17
2029	15
2030	14
2031-2035	$ 65

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-5

Reference 2: 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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- Definition

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

+ References

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

+ References

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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.

+ References

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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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