| **Investments in Non-Consolidated Affiliates Combined Assets, Liabilities and Equity of Equity Method Investments (Details) - USD ($) $ in Millions** | Oct. 31, 2019 | Oct. 31, 2018 |
|-------------------------------------------------------------------------------------------------------------------------------------------------------|---------------|---------------|
| **Equity Method Investment, Summarized Financial Information, Assets [Abstract]**                                                                     |          |          |
| Equity Method Investment, Summarized Financial Information, Current Assets                                                                            | $ 186         | $ 336         |
| Equity Method Investment, Summarized Financial Information, Noncurrent Assets                                                                         | 128           | 168           |
| Equity Method Investment, Summarized Financial Information, Assets                                                                                    | 314           | 504           |
| **Equity Method Investment, Summarized Financial Information, Liabilities and Equity [Abstract]**                                                     |          |          |
| Equity Method Investment, Summarized Financial Information, Current Liabilities                                                                       | 96            | 307           |
| Equity Method Investment, Summarized Financial Information, Noncurrent Liabilities                                                                    | 93            | 38            |
| Equity Method Investment, Summarized Financial Information, Liabilities                                                                               | 189           | 345           |
| **Equity Method Investment Summarized Financial Information, Equity [Abstract]**                                                                      |          |          |
| Equity Method Investment, Summarized Financial Information, Equity Excluding Noncontrolling Interests                                                 | 32            | 53            |
| Equity Method Investment, Summarized Financial Information, Noncontrolling Interest                                                                   | 93            | 106           |
| Equity Method Investment Summarized Financial Information, Equity                                                                                     | 125           | 159           |
| Equity Method Investment, Summarized Financial Information, Liabilities and Equity                                                                    | $ 314         | $ 504         |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of assets reported by an equity method investment of the entity.
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| - Definition
The amount of current assets reported by an equity method investment of the entity.
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| - Definition
The amount of current liabilities reported by an equity method investment of the entity.
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| - Definition
Amount of equity, including noncontrolling interest, reported by an equity method investment of the entity.
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| - Definition
Amount of equity, excluding noncontrolling interest, attributable to the equity method investment of the entity.
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of liabilities reported by an equity method investment of the entity.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of liabilities and equity reported by an equity method investment of the entity.
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| - Definition
Amount of equity attributable to noncontrolling interests of an equity method investment of the entity.
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The amount of noncurrent assets reported by an equity method investment of the entity.
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The amount of noncurrent liabilities reported by an equity method investment of the entity.
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