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NEW ACCOUNTING PRONOUNCEMENTS ASU 2016-09 (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017	Nov. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adopting new revenue standard				$ (64)
Net Cash Provided by (Used in) Operating Activities	$ 998,000,000	$ 555,000,000	$ 328,000,000
Net Cash Provided by (Used in) Financing Activities	$ (122,000,000)	(341,000,000)	1,425,000,000
Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net Cash Provided by (Used in) Operating Activities		555,000,000	328,000,000
Net Cash Provided by (Used in) Financing Activities		$ (335,000,000)	$ 1,425,000,000

X

- Definition

Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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