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COMPREHENSIVE INCOME (LOSS) AND ACCUMULATED OTHER COMPREHENSIVE LOSS - Reclassification out of Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 12 Months Ended
Jul. 31, 2021
Aug. 01, 2020
Aug. 03, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Total reclassifications $ 40    
Cost of sales 23,011 $ 22,670 $ 19,121
Provision (benefit) for income taxes 34 (91) (59)
Net income (loss) including noncontrolling interests 155 (269) (285)
Reclassification out of accumulated other comprehensive income (loss) | Pension and postretirement benefit plan obligations      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Net periodic benefit income, excluding service cost (1) (3) 0
Net periodic benefit income, excluding service cost (17) 11 0
Total reclassifications (18) 8 0
Provision (benefit) for income taxes 4 (2) 0
Net income (loss) including noncontrolling interests (14) 6 0
Reclassification out of accumulated other comprehensive income (loss) | Swap agreements and other cash flow hedges | Swap agreements      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Interest expense, net 46 25 0
Provision (benefit) for income taxes (12) (7) 0
Net income (loss) including noncontrolling interests 34 18 0
Reclassification out of accumulated other comprehensive income (loss) | Swap agreements and other cash flow hedges | Other cash flow hedges      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Cost of sales (1) 0 0
Provision (benefit) for income taxes 0 0 0
Net income (loss) including noncontrolling interests $ (1) $ 0 $ 0