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Segment Reporting - Narrative (Details)
$ in Billions
12 Months Ended
Oct. 25, 2020
USD ($)
segment
Oct. 27, 2019
USD ($)
segment
Segment Reporting Information [Line Items]    
Number of segments | segment 4 4
Wal-Mart Stores | Customer concentration | Revenue Benchmark    
Segment Reporting Information [Line Items]    
Revenue, less returns and allowances | $ $ 1.5 $ 1.4
Concentration risk, percentage 14.60% 13.50%