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Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Jul. 31, 2020
Mar. 31, 2020
Mar. 31, 2019
Income Tax [Line Items]      
Income taxes (benefit)   $ (59) $ 9
Pre-tax income (loss)   $ (33) $ (84)
Subsequent Event [Member]      
Income Tax [Line Items]      
Expected impairment of income tax benefit $ 136    
Israel Tax Authority [Member]      
Income Tax [Line Items]      
Statutory tax rate in Israel   23.00%