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v3.20.2

Segment Information - Additional Information (Detail) - USD ($) $ in Billions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2020 | Dec. 31, 2019
Segment Reporting [Abstract] |  |
Revenue in excess of billings | $ 0.2 | $ 0.2
Total backlog | $ 2.7 |
Percentage of revenue expected to be recognized over next 12 months | 65.00% |
Billings and cash collections in excess of revenue | $ 1.0 | $ 0.9

X
- Definition Contract with customer liability revenue in excess of billings. + References No definition available. + Details
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Namespace Prefix: | slb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contract with customer liability revenue in excess of billings and cash collections current. + References No definition available. + Details
Name: | slb_ContractWithCustomerLiabilityRevenueInExcessOfBillingsAndCashCollectionsCurrent
Namespace Prefix: | slb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage of deferred revenue expected to be recognized within one year. + References No definition available. + Details
Name: | slb_PercentageOfDeferredRevenueExpectedToBeRecognizedWithinOneYear
Namespace Prefix: | slb_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(5)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DeferredRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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