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Multiclient Seismic Data - Change in Carrying Amount of Multiclient Seismic Data (Detail) $ in Millions | 9 Months Ended
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Sep. 30, 2020 USD ($)
Multiclient Seismic Data [Abstract] |
Opening balance | $ 568
Capitalized in period | 86
Charged to expense | (132)
Impairments (See Note 2) | (156)
Other | (22)
Ending balance | $ 344

X
- Definition Capitalized costs directly incurred in acquiring and processing of seismic surveys that are licensed on a nonexclusive basis, net of amortization. + References No definition available. + Details
Name: | slb_MulticlientSeismicData
Namespace Prefix: | slb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Multiclient seismic data. + References No definition available. + Details
Name: | slb_MulticlientSeismicDataAbstract
Namespace Prefix: | slb_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Multiclient seismic data capitalized in period. + References No definition available. + Details
Name: | slb_MulticlientSeismicDataCapitalizedInPeriod
Namespace Prefix: | slb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Multiclient seismic data charged to cost of goods sold and services. + References No definition available. + Details
Name: | slb_MulticlientSeismicDataChargedToCostOfGoodsSoldAndServices
Namespace Prefix: | slb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Multiclient seismic data impairments. + References No definition available. + Details
Name: | slb_MulticlientSeismicDataImpairments
Namespace Prefix: | slb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Other Multiclient Seismic Data + References No definition available. + Details
Name: | slb_MulticlientSeismicOther
Namespace Prefix: | slb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration