v3.8.0.1

Restructuring - Schedule of Restructuring Activities (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2018 | Apr. 30, 2017 | Apr. 30, 2018 | Apr. 30, 2017
Restructuring Reserve |  |  |  |
Charges | $ 9 | $ 69 | $ 12 | $ 152
Cash payments |  |  | (414) | $ (545)
Total |  |  |  |
Restructuring Reserve |  |  |  |
Balance at the beginning of the period |  |  | 254 |
Charges |  |  | 12 |
Cash payments |  |  | (152) |
Non-cash items |  |  | 5 |
Balance at the end of the period | 119 |  | 119 |
Total costs incurred to date, as of April 30, 2018 | 2,235 |  | 2,235 |
Total costs expected to be incurred, as of April 30, 2018 | 2,235 |  | 2,235 |
Employee Severance | 2015 Plan |  |  |  |
Restructuring Reserve |  |  |  |
Balance at the beginning of the period |  |  | 219 |
Charges |  |  | 3 |
Cash payments |  |  | (136) |
Non-cash items |  |  | 1 |
Balance at the end of the period | 87 |  | 87 |
Total costs incurred to date, as of April 30, 2018 | 745 |  | 745 |
Total costs expected to be incurred, as of April 30, 2018 | 745 |  | 745 |
Infrastructure and other | 2015 Plan |  |  |  |
Restructuring Reserve |  |  |  |
Balance at the beginning of the period |  |  | 17 |
Charges |  |  | (1) |
Cash payments |  |  | (6) |
Non-cash items |  |  | 3 |
Balance at the end of the period | 13 |  | 13 |
Total costs incurred to date, as of April 30, 2018 | 79 |  | 79 |
Total costs expected to be incurred, as of April 30, 2018 | 79 |  | 79 |
Infrastructure and other | 2012 Plan |  |  |  |
Restructuring Reserve |  |  |  |
Balance at the beginning of the period |  |  | 2 |
Charges |  |  | (1) |
Cash payments |  |  | 0 |
Non-cash items |  |  | 0 |
Balance at the end of the period | 1 |  | 1 |
Total costs incurred to date, as of April 30, 2018 | 145 |  | 145 |
Total costs expected to be incurred, as of April 30, 2018 | 145 |  | 145 |
Employee Severance and EER | 2012 Plan |  |  |  |
Restructuring Reserve |  |  |  |
Balance at the beginning of the period |  |  | 16 |
Charges |  |  | 11 |
Cash payments |  |  | (10) |
Non-cash items |  |  | 1 |
Balance at the end of the period | 18 |  | 18 |
Total costs incurred to date, as of April 30, 2018 | 1,266 |  | 1,266 |
Total costs expected to be incurred, as of April 30, 2018 | $ 1,266 |  | $ 1,266 |

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