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Derivative Instruments and Hedging Activities - Gain (Loss) on Derivatives in AOCI (Details) - Cash Flow Hedging - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jul. 26, 2020
Jul. 28, 2019
Jul. 26, 2020
Jul. 28, 2019
Derivative Instruments, Gain (Loss) [Line Items]        
Effective portion - gain (loss) recognized in AOCI $ 35   $ (141)  
Effective portion - gain (loss) recognized in AOCI   $ (11)   $ (16)
Foreign exchange contracts        
Derivative Instruments, Gain (Loss) [Line Items]        
Effective portion - gain (loss) recognized in AOCI 6   10  
Effective portion - gain (loss) recognized in AOCI   (11)   (16)
Interest rate contracts        
Derivative Instruments, Gain (Loss) [Line Items]        
Effective portion - gain (loss) recognized in AOCI $ 29   $ (151)  
Effective portion - gain (loss) recognized in AOCI   $ 0   $ 0