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Leases - Lessee Arrangements, Maturities of Operating Leases (Details) - USD ($)
$ in Millions
Jul. 30, 2022
Jul. 31, 2021
Leases [Abstract]    
2023 $ 343  
2024 255  
2025 176  
2026 104  
2027 64  
Thereafter 185  
Total lease payments 1,127  
Less interest (81)  
Total operating lease liabilities $ 1,046 $ 1,168