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FINANCIAL ASSETS (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Current:    
Marketable securities $ 142 $ 173
Foreign currency forward contracts 112 123
Cross currency interest rate swaps 92 0
Loans and receivables 61 61
Other 25 67
Total current 432 424
Non-current:    
Foreign currency forward contracts 29 118
Cross currency interest rate swaps 542 594
Loans and receivables 85 97
Other 107 112
Total non-current $ 763 $ 921