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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 9 Months Ended
Jul. 29, 2018
Jul. 30, 2017
Jul. 29, 2018
Jul. 30, 2017
Fair Value, Recurring Level 3 Measurements from Available-for-Sale Marketable Securities        
Beginning of period balance $ 14 $ 23 $ 17 $ 28
Principal payments (4) (5) (7) (12)
Change in unrealized gain (loss)       2
End of period balance $ 10 $ 18 $ 10 $ 18