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Supplemental Financial Information (Other LT Liabilities) (Details) - USD ($)
$ in Millions
Nov. 04, 2018
Oct. 29, 2017
Other Liabilities, Non Current [Line Items]    
Unrecognized tax benefits (a) $ 3,088 $ 1,011
Deferred tax liabilities 169 10,019
Tax indemnification liability 116 0
Other 263 242
Total other long-term liabilities 3,636 $ 11,272
Ruckus Wireless and ICX Switch [Member]    
Other Liabilities, Non Current [Line Items]    
Tax indemnification liability $ 116