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Balance Sheet Detail - Deferred Income Taxes and Other Assets (Details) - USD ($)
$ in Millions
Jul. 26, 2020
Oct. 27, 2019
Balance Sheet Detail [Abstract]    
Non-current deferred income taxes and income taxes receivable $ 1,699 $ 1,766
Operating lease right-of-use assets 254 0
Other assets 271 265
Deferred Income Taxes and Other Assets $ 2,224 $ 2,031