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LEASES - Lease Assets and Liabilities (Details) - USD ($)
$ in Millions
Jul. 31, 2021
Aug. 01, 2020
Leases [Abstract]    
Operating lease assets $ 1,064 $ 983
Finance lease assets $ 112 $ 129
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Property and equipment, net Property and equipment, net
Total lease assets $ 1,176 $ 1,112
Current portion of operating lease liabilities 135 131
Current portion of long-term debt and finance lease liabilities 107 12
Long-term operating lease liabilities 962 874
Long-term finance lease liabilities 35 143
Total lease liabilities $ 1,239 $ 1,160