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Industry Segment Operations (Income Loss by Segment) (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Oct. 29, 2017
Jul. 30, 2017
Apr. 30, 2017
Jan. 29, 2017
Oct. 30, 2016
Jul. 31, 2016
May 01, 2016
Jan. 31, 2016
Oct. 29, 2017
Oct. 30, 2016
Oct. 25, 2015
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]                      
Unallocated net sales $ 3,969 $ 3,744 $ 3,546 $ 3,278 $ 3,297 $ 2,821 $ 2,450 $ 2,257 $ 14,537 $ 10,825 $ 9,659
Share-based compensation                 (220) (201) (187)
Gain on derivatives associated with terminated business combination                 0 0 89
Income from operations                 3,868 2,152 1,693
Corporate and Other                      
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]                      
Unallocated net sales                 103 157 133
Unallocated cost of products sold and expenses                 (507) (538) (523)
Share-based compensation                 (220) (201) (187)
Certain items associated with terminated business combination                 0 0 (50)
Gain on derivatives associated with terminated business combination                 0 0 89
Income from operations                 $ (624) $ (582) $ (538)