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INCOME TAXES - Income Tax Expense (Benefit) (Details) - USD ($)
$ in Millions
12 Months Ended
Jul. 31, 2021
Aug. 01, 2020
Aug. 03, 2019
Income Tax Disclosure [Abstract]      
Income tax expense (benefit) $ 34 $ (91) $ (59)
Other comprehensive income 65 (45) (34)
Total $ 99 $ (136) $ (93)