Financial Instruments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Jan. 31, 2019	Oct. 31, 2018
Investment Holdings
Investments in equity interests	$ 2,413	$ 2,398
Equity securities in privately held companies \| Long-Term Financing Receivables and Other Assets
Investment Holdings
Investment amount	167	$ 162
Cash flow hedges
Investment Holdings
Gain expected to be reclassified from Accumulated OCI into earnings in next 12 months	$ 29

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Publisher FASB
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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