XML 51 R40.htm IDEA: XBRL DOCUMENT
v3.5.0.2

OVERVIEW, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Re-classification (Details) $ in Millions | 9 Months Ended
--- | ---
Jul. 31, 2016 USD ($)
Supplemental Income Statement Elements [Abstract] |
Product Revenue that was previously classified as Services and Other Revenue | $ 5
Cost of Products that was previously classified as Cost of Services and Others | $ 7

X
- Definition Cost of Products that was previously classified as Cost of Services and Others + References No definition available. + Details
Name: | keys_CostofProductsthatwaspreviouslyclassifiedasCostofServicesandOthers
Namespace Prefix: | keys_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Product Revenue that was previously classified as Services and Other Revenue + References No definition available. + Details
Name: | keys_ProductRevenuethatwaspreviouslyclassifiedasServicesandOtherRevenue
Namespace Prefix: | keys_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SupplementalIncomeStatementElementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration