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DEBT Long Term and Short Term Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Debt Instrument [Line Items]
Repayments of Debt	$ 500	$ 300	$ 323
Long-term Debt	1,788	1,291
Long-term Debt, Excluding Current Maturities	$ 1,788	1,291
Repayments of Senior Debt		$ 260	$ 140
3.30% Senior Notes 2019
Debt Instrument [Line Items]
Issuance date of debt	Oct. 31, 2014
Debt Instrument, Face Amount	$ 500
Maturity date	Oct. 30, 2019
3.00% Senior Notes 2029
Debt Instrument [Line Items]
Debt Issuance Costs, Gross	$ 4
Issuance date of debt	Oct. 31, 2019
Debt Instrument, Face Amount	$ 500
Percentage Of Face Amount Of Debt Instrument Issued	99.914%
Maturity date	Oct. 30, 2029
Debt Instrument, Interest Rate, Stated Percentage	3.00%
Debt Instrument, Frequency of Periodic Payment	semi-annually
Term Loan [Member]
Debt Instrument [Line Items]
Issuance date of debt	Feb. 15, 2017
Debt Instrument, Face Amount	$ 400
Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis	LIBOR + 1.50%
4.55% Senior Notes 2024
Debt Instrument [Line Items]
Debt Issuance Costs, Gross	$ 5
Issuance date of debt	Oct. 31, 2014
Debt Instrument, Face Amount	$ 600
Percentage Of Face Amount Of Debt Instrument Issued	99.966%
Maturity date	Oct. 30, 2024
Debt Instrument, Interest Rate, Stated Percentage	4.55%
Debt Instrument, Frequency of Periodic Payment	semi-annually
4.60% Senior Notes 2027
Debt Instrument [Line Items]
Debt Issuance Costs, Gross	$ 6
Issuance date of debt	Apr. 30, 2017
Debt Instrument, Face Amount	$ 700
Percentage Of Face Amount Of Debt Instrument Issued	99.873%
Maturity date	Apr. 06, 2027
Debt Instrument, Interest Rate, Stated Percentage	4.60%
Debt Instrument, Frequency of Periodic Payment	semi-annually

X

- Definition

Proceeds obtained expressed as a percentage of debt instrument face value.

+ References

No definition available.

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

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- Definition

Face (par) amount of debt instrument at time of issuance.

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-SubTopic 30
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Contractual interest rate for funds borrowed, under the debt agreement.

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Date the debt instrument was issued, in CCYY-MM-DD format.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period.

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