COMMITMENTS AND CONTINGENCIES Nova Ethylene Asset Matter (Details) - Nova Ethylene Asset Matter [Member] $ in Millions, $ in Millions		3 Months Ended
Sep. 18, 2019 CAD ($)	Sep. 18, 2019 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Gain Contingencies [Line Items]
Litigation Settlement, Amount Awarded from Other Party	$ 1,430	$ 1,080	$ 1,000
Estimated Litigation Liability, Noncurrent			$ 201	$ 201

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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Carrying amount of estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs, which is expected to be paid after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(25))
-Publisher FASB
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