FINANCIAL INSTRUMENTS - Schedule of derivatives instruments presented at fair value in the Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Derivatives, Fair Value [Line Items]
Fair value of derivatives instruments - noncurrent assets	$ 4	$ 11
Fair value of derivatives instruments - current assets	132	72
Fair value of derivatives instruments - assets	136	83
Fair value of derivatives instruments - noncurrent liabilities	3	3
Fair value of derivatives instruments - current liabilities	37	18
Fair value of derivatives instruments - liabilities	40	21
Currency commercial derivatives \| Derivatives that qualify for hedge accounting
Derivatives, Fair Value [Line Items]
Fair value of derivatives instruments - noncurrent assets	2	7
Fair value of derivatives instruments - current assets	2	6
Fair value of derivatives instruments - assets	4	13
Currency commercial derivatives \| Derivatives that do not qualify for hedge accounting
Derivatives, Fair Value [Line Items]
Fair value of derivatives instruments - noncurrent assets	1	3
Fair value of derivatives instruments - current assets	5	7
Fair value of derivatives instruments - assets	6	10
Fair value of derivatives instruments - noncurrent liabilities	1	1
Fair value of derivatives instruments - current liabilities	10	4
Fair value of derivatives instruments - liabilities	11	5
Currency net debt derivatives \| Derivatives that do not qualify for hedge accounting
Derivatives, Fair Value [Line Items]
Fair value of derivatives instruments - noncurrent assets	0	0
Fair value of derivatives instruments - current assets	1	0
Fair value of derivatives instruments - assets	1	0
Energy derivatives \| Derivatives that do not qualify for hedge accounting
Derivatives, Fair Value [Line Items]
Fair value of derivatives instruments - noncurrent assets	1	1
Fair value of derivatives instruments - current assets	1	1
Fair value of derivatives instruments - assets	2	2
Fair value of derivatives instruments - noncurrent liabilities	2	1
Fair value of derivatives instruments - current liabilities	3	2
Fair value of derivatives instruments - liabilities	5	3
Metal derivatives \| Derivatives that do not qualify for hedge accounting
Derivatives, Fair Value [Line Items]
Fair value of derivatives instruments - noncurrent assets	0	0
Fair value of derivatives instruments - current assets	123	58
Fair value of derivatives instruments - assets	123	58
Fair value of derivatives instruments - noncurrent liabilities	0	1
Fair value of derivatives instruments - current liabilities	24	12
Fair value of derivatives instruments - liabilities	$ 24	$ 13

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