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v3.19.3.a.u2

REVENUE Contract cost (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Oct. 31, 2019 | Nov. 01, 2018
Revenue from Contract with Customer [Abstract] |  |
Balance at October 31, 2018 | $ 0 |
Costs capitalized on November 1, 2018 due to ASC 606 adoption |  | $ 29
Costs capitalized during the period | 63 |
Costs amortized during the period | (64) |
Balance at October 31, 2019 | $ 28 |

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- Definition Capitalized contract cost, during the period + References No definition available. + Details
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Namespace Prefix: | keys_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Cost capitalized on day 1 due to adoption of asc 606 + References No definition available. + Details
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Namespace Prefix: | keys_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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- References No definition available. + Details
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