v3.8.0.1

Segment Information - Segment Assets (Details) - USD ($) $ in Millions | Apr. 30, 2018 | Oct. 31, 2017
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Assets | $ 59,876 | $ 61,406
Operating Segment | Hybrid IT |  |
Segment Reporting Information [Line Items] |  |
Assets | 26,488 | 25,923
Operating Segment | Intelligent Edge |  |
Segment Reporting Information [Line Items] |  |
Assets | 3,042 | 3,002
Operating Segment | Financial Services |  |
Segment Reporting Information [Line Items] |  |
Assets | 13,560 | 13,470
Operating Segment | Corporate Investments |  |
Segment Reporting Information [Line Items] |  |
Assets | 160 | 161
Corporate, Non-Segment |  |
Segment Reporting Information [Line Items] |  |
Assets | $ 16,626 | $ 18,850

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