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Pension and Other Benefit Plans - Fair Value of Schlumberger's Pension Plan Assets (Detail) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | $ 3,175 | $ 3,427 | $ 3,396
International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 7,674 | 8,390 | $ 8,126
Level One | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 104 | 196 |
Level One | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 801 | 945 |
Level Two | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 2,586 | 2,729 |
Level Two | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 4,860 | 5,203 |
Level Three | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 485 | 502 |
Level Three | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 2,013 | 2,242 |
Cash and cash equivalents | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 33 | 33 |
Cash and cash equivalents | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 90 | 267 |
Cash and cash equivalents | Level One | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 33 | 33 |
Cash and cash equivalents | Level One | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 89 | 260 |
Cash and cash equivalents | Level Two | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 1 | 7 |
Equity securities | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 70 | 6 |
Equity securities | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 264 | 122 |
Equity securities | Level One | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 58 |  |
Equity securities | Level One | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 264 | 122 |
Equity securities | Level Two | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 12 | 6 |
Corporate bonds | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 1,713 | 1,540 |
Corporate bonds | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 2,948 | 3,001 |
Corporate bonds | Level Two | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 1,713 | 1,540 |
Corporate bonds | Level Two | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 2,948 | 3,001 |
Government and related debt securities | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 861 | 1,334 |
Government and related debt securities | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 1,969 | 2,466 |
Government and related debt securities | Level One | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 13 | 163 |
Government and related debt securities | Level One | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 448 | 563 |
Government and related debt securities | Level Two | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 848 | 1,171 |
Government and related debt securities | Level Two | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 1,521 | 1,903 |
Private equity | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 234 | 287 |
Private equity | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 1,136 | 1,269 |
Private equity | Level Three | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 234 | 287 |
Private equity | Level Three | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 1,136 | 1,269 |
Private debt | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 186 | 148 |
Private debt | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 738 | 805 |
Private debt | Level Three | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 186 | 148 |
Private debt | Level Three | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 738 | 805 |
Real estate | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 65 | 67 |
Real estate | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 139 | 168 |
Real estate | Level Three | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 65 | 67 |
Real estate | Level Three | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 139 | 168 |
Other | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 13 | 12 |
Other | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 390 | 292 |
Other | Level Two | US |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | 13 | 12 |
Other | Level Two | International |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets at fair value | $ 390 | $ 292 |

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