v3.20.2

OTHER CURRENT ASSETS - MARKETABLE SECURITIES AND OTHER SHORT-TERM INVESTMENTS (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Net Investment Income [Line Items] |  |  |  |  |
Marketable securities and other short-term investments | $ 294 |  | $ 294 |  | $ 393
Marketable securities at fair value | 280 |  | 280 |  | 387
Unrealized gains | 4 | $ 27 | 16 | $ 140 |
Foreign government securities |  |  |  |  |
Net Investment Income [Line Items] |  |  |  |  |
Marketable securities and other short-term investments | 129 |  | 129 |  | 212
Corporate debt securities |  |  |  |  |
Net Investment Income [Line Items] |  |  |  |  |
Marketable securities and other short-term investments | 151 |  | 151 |  | 161
Equity securities |  |  |  |  |
Net Investment Income [Line Items] |  |  |  |  |
Marketable securities and other short-term investments | 0 |  | 0 |  | 14
Other |  |  |  |  |
Net Investment Income [Line Items] |  |  |  |  |
Marketable securities and other short-term investments | $ 14 |  | $ 14 |  | $ 6

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