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