STOCKHOLDER'S EQUITY - Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Millions |
3 Months Ended |
6 Months Ended |
Apr. 30, 2017 |
Apr. 30, 2016 |
Apr. 30, 2017 |
Apr. 30, 2016 |
| AOCI Attributable to Parent, Net of Tax [Roll Forward] |
|
|
|
|
| Beginning balance |
$ (611)
|
$ (497)
|
$ (618)
|
$ (479)
|
| OCI, before Reclassifications, before Tax, Attributable to Parent |
7
|
52
|
15
|
26
|
| Reclassification from AOCI, Current Period, before Tax, Attributable to Parent |
12
|
10
|
24
|
22
|
| Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent |
(3)
|
(2)
|
(16)
|
(6)
|
| Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent |
16
|
60
|
23
|
42
|
| Ending balance |
(595)
|
(437)
|
(595)
|
(437)
|
| Unrealized gain on equity securities [Member] |
|
|
|
|
| AOCI Attributable to Parent, Net of Tax [Roll Forward] |
|
|
|
|
| Beginning balance |
14
|
15
|
10
|
21
|
| OCI, before Reclassifications, before Tax, Attributable to Parent |
(1)
|
(1)
|
4
|
(8)
|
| Reclassification from AOCI, Current Period, before Tax, Attributable to Parent |
0
|
0
|
0
|
0
|
| Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent |
1
|
0
|
0
|
1
|
| Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent |
0
|
(1)
|
4
|
(7)
|
| Ending balance |
14
|
14
|
14
|
14
|
| Foreign currency translation [Member] |
|
|
|
|
| AOCI Attributable to Parent, Net of Tax [Roll Forward] |
|
|
|
|
| Beginning balance |
(53)
|
(73)
|
(29)
|
(48)
|
| OCI, before Reclassifications, before Tax, Attributable to Parent |
9
|
56
|
(15)
|
31
|
| Reclassification from AOCI, Current Period, before Tax, Attributable to Parent |
0
|
0
|
0
|
0
|
| Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent |
0
|
0
|
0
|
0
|
| Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent |
9
|
56
|
(15)
|
31
|
| Ending balance |
(44)
|
(17)
|
(44)
|
(17)
|
| Net defined benefit pension cost and post retirement plan costs, actuarial losses [Member] |
|
|
|
|
| AOCI Attributable to Parent, Net of Tax [Roll Forward] |
|
|
|
|
| Beginning balance |
(618)
|
(499)
|
(646)
|
(511)
|
| OCI, before Reclassifications, before Tax, Attributable to Parent |
0
|
0
|
24
|
4
|
| Reclassification from AOCI, Current Period, before Tax, Attributable to Parent |
17
|
14
|
34
|
28
|
| Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent |
(5)
|
(4)
|
(18)
|
(10)
|
| Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent |
12
|
10
|
40
|
22
|
| Ending balance |
(606)
|
(489)
|
(606)
|
(489)
|
| Net defined benefit pension cost and post retirement plan costs, prior service credits [Member] |
|
|
|
|
| AOCI Attributable to Parent, Net of Tax [Roll Forward] |
|
|
|
|
| Beginning balance |
46
|
62
|
50
|
65
|
| OCI, before Reclassifications, before Tax, Attributable to Parent |
0
|
0
|
0
|
0
|
| Reclassification from AOCI, Current Period, before Tax, Attributable to Parent |
(6)
|
(7)
|
(12)
|
(13)
|
| Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent |
2
|
2
|
4
|
5
|
| Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent |
(4)
|
(5)
|
(8)
|
(8)
|
| Ending balance |
42
|
57
|
42
|
57
|
| Unrealized gain (losses) on derivatives [Member] |
|
|
|
|
| AOCI Attributable to Parent, Net of Tax [Roll Forward] |
|
|
|
|
| Beginning balance |
0
|
(2)
|
(3)
|
(6)
|
| OCI, before Reclassifications, before Tax, Attributable to Parent |
(1)
|
(3)
|
2
|
(1)
|
| Reclassification from AOCI, Current Period, before Tax, Attributable to Parent |
1
|
3
|
2
|
7
|
| Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent |
(1)
|
0
|
(2)
|
(2)
|
| Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent |
(1)
|
0
|
2
|
4
|
| Ending balance |
$ (1)
|
$ (2)
|
$ (1)
|
$ (2)
|