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Goodwill and Other Intangible Assets - Estimated Future Aggregate Amortization Expense of Amortizable Intangible Assets (Details)
$ in Millions
Jul. 28, 2017
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
Remaining 2018 $ 1,365
2019 1,741
2020 1,693
2021 1,674
2022 1,631
2023 $ 1,564