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Multiclient Seismic Data | 12 Months Ended
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Dec. 31, 2018
Multiclient Seismic Data [Abstract] |
Multiclient Seismic Data | 7. Multiclient Seismic Data The change in the carrying amount of multiclient seismic data is as follows:
(Stated in millions) |
| 2018 |  |  | 2017 |
Balance at beginning of year | $ | 727 |  |  | $ | 1,073 |
Capitalized in period |  | 100 |  |  |  | 276 |
Charged to expense |  | (226 | ) |  |  | (377 | )
Impairment charge (see Note 3) |  | - |  |  |  | (245 | )
| $ | 601 |  |  | $ | 727 |

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

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- Definition Disclosure of the carrying amount of multiclient seismic data based on completed and in-process seismic surveys. + References No definition available. + Details
Name: | slb_MulticlientSeismicDataTextBlock
Namespace Prefix: | slb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration