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Stockholders' Equity (Stock-based Compensation Expense) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Aug. 01, 2021
Aug. 02, 2020
Aug. 01, 2021
Aug. 02, 2020
Employee Service Stock-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Unrecognized compensation cost related to unvested stock-based awards $ 3,334   $ 3,334  
Unrecognized compensation cost, Remaining weighted-average service period     3 years 1 month 6 days  
Stock-based compensation expense 421 $ 465 $ 1,290 $ 1,527
Cost of products sold        
Employee Service Stock-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation expense 18 26 59 84
Cost of subscriptions and services        
Employee Service Stock-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation expense 18 11 47 37
Research and development        
Employee Service Stock-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation expense 285 337 920 1,101
Selling, general and administrative        
Employee Service Stock-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation expense $ 100 $ 91 $ 264 $ 305