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FINANCIAL INSTRUMENTS (Income Statement) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Derivative [Line Items] |  |  |  |
Other income (expense), net | $ 322 | $ 13 | $ 326 | $ (3)
Other Nonoperating Income (Expense) |  |  |  |
Derivative [Line Items] |  |  |  |
Hedged items (Long-term debt) | 0 | 1 | 0 | (68)
Other Nonoperating Income (Expense) | Fair Value Hedging |  |  |  |
Derivative [Line Items] |  |  |  |
Derivatives designated as hedging instruments | $ 0 | $ (1) | $ 0 | $ 68

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