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INCOME TAX (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax [Line Items]      
Deductible temporary differences $ 12 $ 17  
Israel      
Income Tax [Line Items]      
Corporate tax rate 23.00% 23.00% 23.00%
Net operating losses $ 190    
U.S.      
Income Tax [Line Items]      
Corporate tax rate 21.00% 21.00% 21.00%
Net operating losses $ 64    
U.S. | Net operating losses expiring in 2037      
Income Tax [Line Items]      
Net operating losses 10    
U.S. | Net operating losses with no expiration      
Income Tax [Line Items]      
Net operating losses $ 54