v2.4.1.9

SEGMENT INFORMATION Profitability (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jan. 31, 2015	Jan. 31, 2014
Segment Reporting Information [Line Items]
Revenue, Net	$ 701us-gaap_SalesRevenueNet	$ 671us-gaap_SalesRevenueNet
Operating Income (Loss)	81us-gaap_OperatingIncomeLoss	91us-gaap_OperatingIncomeLoss
Measurement Solutions [Member]
Segment Reporting Information [Line Items]
Revenue, Net	606us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = keys_MeasurementSolutionsMember	574us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = keys_MeasurementSolutionsMember
Operating Income (Loss)	107us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = keys_MeasurementSolutionsMember	99us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = keys_MeasurementSolutionsMember
Customer support & services [Member] [Member]
Segment Reporting Information [Line Items]
Revenue, Net	95us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = keys_CustomersupportservicesMemberMember	97us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = keys_CustomersupportservicesMemberMember
Operating Income (Loss)	13us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = keys_CustomersupportservicesMemberMember	19us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = keys_CustomersupportservicesMemberMember
Segment Total [Member]
Segment Reporting Information [Line Items]
Revenue, Net	701us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = keys_SegmentTotalMember	671us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = keys_SegmentTotalMember
Operating Income (Loss)	$ 120us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = keys_SegmentTotalMember	$ 118us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = keys_SegmentTotalMember

X

- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

+ Details

Name:	us-gaap_OperatingIncomeLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

X

- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=keys_MeasurementSolutionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=keys_SegmentTotalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: