Guarantees, Indemnifications and Warranties (Details) - USD ($) $ in Millions	6 Months Ended
Apr. 30, 2017	Oct. 31, 2016
General Cross indemnifications
Receivable	$ 1,300
Changes in aggregated product warranty liabilities
Balance at beginning of period	497
Accruals for warranties issued	167
Adjustments related to pre-existing warranties (including changes in estimates)	(6)
Settlements made (in cash or in kind)	(159)
Balance at end of period	499
Cross-Indemnifications
General Cross indemnifications
Receivable	54
Payable	42
Former Parent Company \| Cross-Indemnifications
General Cross indemnifications
Receivable		$ 56
Payable		$ 41
Majority-Owned Subsidiary, Unconsolidated
General Cross indemnifications
Receivable	108
Tax Indemnification \| Majority-Owned Subsidiary, Unconsolidated
General Cross indemnifications
Receivable	$ 127

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Carrying amount as of the balance sheet date of obligation due outside entity.

+ References

No definition available.

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Carrying amount as of the balance sheet date of obligations due from outside entities.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph ((c)(5))
-URI http://asc.fasb.org/extlink&oid=51674963&loc=d3e12565-110249

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Represents the aggregate decrease in the liability related to payments to satisfy claims for standard and extended product warranties.

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Represents the aggregate Increase or Decrease in the liability during the reporting period for accruals related to preexisting standard and extended product warranties (including adjustments for changes in estimates).

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Represents the aggregate increase in the liability for accruals related to standard and extended product warranties issued during the reporting period.

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