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FAIR VALUE MEASUREMENTS - Recurring, Level 3 Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis - Level 3 - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 29, 2018
Apr. 30, 2017
Apr. 29, 2018
Apr. 30, 2017
Fair Value, Recurring Level 3 Measurements from Available-for-Sale Marketable Securities        
Beginning of period balance $ 15 $ 23 $ 17 $ 28
Principal payments (1) (1) (3) (6)
Change in unrealized gain (loss)   1   1
End of period balance $ 14 $ 23 $ 14 $ 23