Retirement and Post-Retirement Benefit Plans - Schedule of Estimated Future Benefits Payments for Retirement and Post-Retirement Plans (Details) $ in Millions	Oct. 31, 2019 USD ($)
Post-Retirement Benefit Plans
Fiscal year
2020	$ 40
2021	36
2022	32
2023	29
2024	28
Next five fiscal years to October 31, 2029	135
U.S. \| Defined Benefit Plans
Fiscal year
2020	730
2021	752
2022	769
2023	788
2024	809
Next five fiscal years to October 31, 2029	4,020
Non-U.S. \| Defined Benefit Plans
Fiscal year
2020	40
2021	34
2022	39
2023	40
2024	45
Next five fiscal years to October 31, 2029	$ 276

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- Definition

Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.

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