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SHARE-BASED COMPENSATION (Stock Option Activity) (Details) - $ / shares shares in Thousands	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding, beginning balance (in shares)	2,202
Keysight converted at October 31, 2014 (in shares)	3,947
Granted (in shares)	968
Exercised (in shares)	(830)
Outstanding, ending balance (in shares)	4,025	2,202
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted-average exercise price per share, beginning of period (in dollars per share)	$ 36
Weighted-average exercise price per share, Keysight converted at October 31, 2014 (in dollars per share)	20
Weighted-average exercise price per share, granted (in dollars per share)	31
Weighted-average exercise price per share, exercised (in dollars per share)	16	$ 30	$ 28
Weighted-average exercise price per share, end of period (in dollars per share)	$ 24	36
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volume-weighted average trading price of Keysight Shares over the first two trading sessions immediately after the Distribution Date (in dollars per share)		30.80
Forfeited and expired options from total cancellations [Abstract]
Forfeited (in shares)	16
Expired (in shares)	44
Total options canceled (in shares)	(60)
Share-based Compensation Arrangement by Share-based Payment Award, Options forfeited and expired, Additional Disclosures [Abstract]
Weighted-average exercise price per share, forfeited (in dollars per share)	$ 27
Weighted-average exercise price per share, expired (in dollars per share)	15
Weighted-average exercise price per share, total options cancelled (in dollars per share)	$ 18
Agilent [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share price (in dollars per share)		$ 55.28

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Share Based Compensation Arrangement By Share Based Payment Award Options Forfeited And Expired Additional Disclosures [Abstract]

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Share-based Compensation Arrangement by Share-based Payment Award, Options, Conversions in Period

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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