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Pension and Other Benefit Plans - Fair Value of Schlumberger's Pension Plan Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	$ 4,696	$ 4,776	$ 4,236
International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	11,221	10,493	$ 9,363
Level One | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	504	930
Level One | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	2,891	4,436
Level Two | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	3,761	3,547
Level Two | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	5,990	4,316
Level Three | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	431	299
Level Three | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	2,340	1,741
Cash and cash equivalents | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	68	140
Cash and cash equivalents | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	362	288
Cash and cash equivalents | Level One | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	61	127
Cash and cash equivalents | Level One | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	353	215
Cash and cash equivalents | Level Two | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	7	13
Cash and cash equivalents | Level Two | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	9	73
Equity securities | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	212	527
Equity securities | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	1,909	3,075
Equity securities | Level One | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	196	441
Equity securities | Level One | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	1,600	2,393
Equity securities | Level Two | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	16	86
Equity securities | Level Two | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	309	682
Equity securities, International | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	49	186
Equity securities, International | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	717	1,711
Equity securities, International | Level One | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	48	182
Equity securities, International | Level One | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	717	1,615
Equity securities, International | Level Two | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	1	4
Equity securities, International | Level Two | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value		96
Corporate bonds | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	2,583	1,945
Corporate bonds | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	2,859	1,223
Corporate bonds | Level Two | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	2,583	1,945
Corporate bonds | Level Two | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	2,859	1,223
Government and government-related debt securities | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	1,353	1,679
Government and government-related debt securities | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	2,390	2,371
Government and government-related debt securities | Level One | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	199	180
Government and government-related debt securities | Level One | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	221	213
Government and government-related debt securities | Level Two | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	1,154	1,499
Government and government-related debt securities | Level Two | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	2,169	2,158
Private equity | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	293	204
Private equity | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	1,284	842
Private equity | Level Three | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	293	204
Private equity | Level Three | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	1,284	842
Real estate | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	99	95
Real estate | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	187	200
Real estate | Level Three | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	99	95
Real estate | Level Three | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	187	200
Private debt | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	39
Private debt | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	869	699
Private debt | Level Three | United States
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	39
Private debt | Level Three | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	869	699
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	644	84
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises | Level Two | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value	$ 644	$ 84

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