COMMITMENTS AND CONTINGENT LIABILITIES (Guarantees) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Sadara Chemical Company [Member]
Guarantor Obligations [Line Items]
Equity Method Investment, Ownership Percentage	35.00%
Sadara Chemical Company [Member] \| Total Project Financing [Member]
Guarantor Obligations [Line Items]
Guarantor obligations, maximum future payments	$ 501
Project Financing, Maximum Borrowing Capacity	9,900
Performance Guarantee [Member]
Guarantor Obligations [Line Items]
Guarantor obligations, maximum future payments	1,312	$ 251
Guarantor obligations, recorded liability	225	2
Performance Guarantee [Member] \| Sadara Chemical Company [Member]
Guarantor Obligations [Line Items]
Guarantor obligations, maximum future payments	1,300	$ 220
Performance Guarantee [Member] \| Sadara Chemical Company [Member] \| Sadara Chemical Company [Member]
Guarantor Obligations [Line Items]
Guarantor obligations, maximum future payments	$ 500

Face (par) amount of debt instrument at time of issuance.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

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