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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
Jan. 28, 2018
Jan. 29, 2017
Fair Value, Recurring Level 3 Measurements from Available-for-Sale Marketable Securities    
Beginning of period balance $ 17 $ 28
Principal payments (2) (6)
Change in unrealized gain (loss)   1
End of period balance $ 15 $ 23