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REVENUE RECOGNITION - Advanced Customer Payments (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 28, 2019
Apr. 28, 2019
Oct. 28, 2018
Advanced customer payments      
Deferred revenue received $ 1,014 $ 1,014 $ 915
Revenue recognized from deferred revenue $ 103 $ 265