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STOCKHOLDERS' EQUITY - Stock Repurchase Program (Details) - USD ($) $ in Millions |  | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Feb. 01, 2018 | Jan. 31, 2019 | Jan. 31, 2018 | Nov. 19, 2018 | Nov. 01, 2018 | May 28, 2015
Share repurchase program |  |  |  |  |  |
Aggregate cost of shares repurchased |  | $ 75 | $ 47 |  |  |
2019 Repurchase Program [Member] |  |  |  |  |  |
Share repurchase program |  |  |  |  |  |
Share repurchase program authorized amount |  |  |  | $ 1,750 |  |
Stock repurchased and retired, (in shares) |  | 1,100,000 |  |  |  |
Stock repurchased and retired - Value |  | $ 75 |  |  |  |
Remaining authorized repurchase amount under share repurchase program |  | $ 1,675 |  |  |  |
2015 Repurchase Program |  |  |  |  |  |
Share repurchase program |  |  |  |  |  |
Share repurchase program authorized amount |  |  |  |  |  | $ 1,140
Stock repurchased (in shares) |  |  | 674,000 |  |  |
Stock repurchased - value |  |  | $ 47 |  |  |
Remaining authorized repurchase amount under share repurchase program |  |  |  |  | $ 188 |
Treasury Stock Retired |  |  |  |  |  |
Number of treasury shares retired (is shares) | 37,000 | 637,000 |  |  |  |

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