v3.21.2
OTHER CURRENT ASSETS - MARKETABLE SECURITIES AND OTHER SHORT-TERM INVESTMENTS (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Net Investment Income [Line Items]          
Marketable securities and other short-term investments $ 437   $ 437   $ 346
Marketable securities at fair value 436   436   343
Unrealized gains 16 $ 21 22 $ 12  
Foreign government securities          
Net Investment Income [Line Items]          
Marketable securities and other short-term investments 279   279   207
Corporate debt securities          
Net Investment Income [Line Items]          
Marketable securities and other short-term investments 157   157   136
Other          
Net Investment Income [Line Items]          
Marketable securities and other short-term investments $ 1   $ 1   $ 3