v3.21.2
OTHER CURRENT ASSETS - MARKETABLE SECURITIES AND OTHER SHORT-TERM INVESTMENTS (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Net Investment Income [Line Items]          
Marketable securities and other short-term investments $ 451   $ 451   $ 346
Marketable securities at fair value 431   431   343
Unrealized gains 42 $ 4 60 $ 16  
Foreign government securities          
Net Investment Income [Line Items]          
Marketable securities and other short-term investments 231   231   207
Corporate debt securities          
Net Investment Income [Line Items]          
Marketable securities and other short-term investments 154   154   136
Equity securities          
Net Investment Income [Line Items]          
Marketable securities and other short-term investments 50   50   0
Other          
Net Investment Income [Line Items]          
Marketable securities and other short-term investments $ 16   $ 16   $ 3