FAIR VALUE MEASUREMENTS, Fair value of assets and liabilities measured on a recurring basis (Details) - Fair Value, Measurements, Recurring [Member] - USD ($)
$ in Millions |
Oct. 31, 2017 |
Oct. 31, 2016 |
| Assets, Short-term [Abstract] |
|
|
| Cash equivalents (money market funds) |
$ 1,659
|
$ 1,482
|
| Derivative instruments (foreign exchange contracts) |
4
|
9
|
| Assets, Long-term [Abstract] |
|
|
| Trading securities |
32
|
31
|
| Total assets measured at fair value |
1,695
|
1,522
|
| Liabilities, Short-term [Abstract] |
|
|
| Derivative instruments (foreign exchange contracts) |
6
|
8
|
| Liabilities, Long-term [Abstract] |
|
|
| Deferred compensation liability |
32
|
31
|
| Total liabilities measured at fair value |
38
|
39
|
| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |
|
|
| Assets, Short-term [Abstract] |
|
|
| Cash equivalents (money market funds) |
1,659
|
1,482
|
| Derivative instruments (foreign exchange contracts) |
0
|
0
|
| Assets, Long-term [Abstract] |
|
|
| Trading securities |
32
|
31
|
| Total assets measured at fair value |
1,691
|
1,513
|
| Liabilities, Short-term [Abstract] |
|
|
| Derivative instruments (foreign exchange contracts) |
0
|
0
|
| Liabilities, Long-term [Abstract] |
|
|
| Deferred compensation liability |
0
|
0
|
| Total liabilities measured at fair value |
0
|
0
|
| Significant Other Observable Inputs (Level 2) [Member] |
|
|
| Assets, Short-term [Abstract] |
|
|
| Cash equivalents (money market funds) |
0
|
0
|
| Derivative instruments (foreign exchange contracts) |
4
|
9
|
| Assets, Long-term [Abstract] |
|
|
| Trading securities |
0
|
0
|
| Total assets measured at fair value |
4
|
9
|
| Liabilities, Short-term [Abstract] |
|
|
| Derivative instruments (foreign exchange contracts) |
6
|
8
|
| Liabilities, Long-term [Abstract] |
|
|
| Deferred compensation liability |
32
|
31
|
| Total liabilities measured at fair value |
38
|
39
|
| Significant Unobservable Inputs (Level 3) [Member] |
|
|
| Assets, Short-term [Abstract] |
|
|
| Cash equivalents (money market funds) |
0
|
0
|
| Derivative instruments (foreign exchange contracts) |
0
|
0
|
| Assets, Long-term [Abstract] |
|
|
| Trading securities |
0
|
0
|
| Total assets measured at fair value |
0
|
0
|
| Liabilities, Short-term [Abstract] |
|
|
| Derivative instruments (foreign exchange contracts) |
0
|
0
|
| Liabilities, Long-term [Abstract] |
|
|
| Deferred compensation liability |
0
|
0
|
| Total liabilities measured at fair value |
$ 0
|
$ 0
|