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SHORT-TERM DEBT Senior Notes (Details) - USD ($) $ in Millions | Oct. 20, 2014 | Oct. 24, 2007 | Jan. 31, 2017 | Oct. 31, 2016
--- | --- | --- | --- | ---
Short-term Debt |  |  |  |
Interest rate swap |  |  | $ 14 | $ 16
Senior Notes 2017 |  |  |  |
Short-term Debt |  |  |  |
Debt issuance date |  | Oct. 24, 2007 |  |
Aggregate face amount | $ 600 | $ 600 | 100 |
Amount of extinguishment of debt | $ 500 |  |  |
Interest rate swap |  |  |  | $ 1
Short-term Debt | Senior Notes 2017 |  |  |  |
Short-term Debt |  |  |  |
Interest rate swap |  |  | $ 1 |

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