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FINANCIAL ASSETS (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Current    
Restricted cash $ 47 $ 299
Derivative contracts 40 19
Loans and notes receivable 1 1
Total current 88 319
Non-current    
Restricted cash 209 204
Derivative contracts 45 36
Loans and notes receivable 7 1
Total non-current $ 261 $ 241