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