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Goodwill and Intangible Assets (Intangible Asset Amortization) (Details) - USD ($)
$ in Millions
Aug. 01, 2021
Nov. 01, 2020
Finite-lived intangible assets future amortization expense    
2021 (Remainder) $ 1,347  
2022 4,367  
2023 3,239  
2024 2,369  
2025 659  
Thereafter 719  
Finite-lived intangible assets, net book value $ 12,700 $ 16,757