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COMMITMENTS AND CONTINGENT LIABILITIES - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2021 | Sep. 30, 2021 | Mar. 31, 2021
Site Contingency [Line Items] |  |  |
Accrual for environmental remediation matters |  | $ 16 |
Value added tax receivable | $ 81 | 48 | $ 11
Additional receivable recognized | 70 |  |
Value added tax, income | 70 |  |
Cost of Sales |  |  |
Site Contingency [Line Items] |  |  |
Value added tax, income | 42 |  |
Interest Expense |  |  |
Site Contingency [Line Items] |  |  |
Value added tax, income | $ 28 |  |
Svetogorsk, Russia Mill |  |  |
Site Contingency [Line Items] |  |  |
Accrual for environmental remediation matters |  | $ 13 |

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