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Pension and Other Benefit Plans - Net Pension Cost (Credit) for Schlumberger Pension Plans and US Postretirement Medical Plan (Detail) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Jun. 30, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]        
Curtailment gain     $ 69  
Postretirement medical plan        
Defined Benefit Plan Disclosure [Line Items]        
Service cost   $ 28 31 $ 29
Interest cost   32 36 45
Expected return on plan assets   (73) (70) (64)
Amortization of prior service cost   (23) (25) (28)
Total pension cost   (36) (97) (18)
Curtailment gain $ (69)   (69)  
United States        
Defined Benefit Plan Disclosure [Line Items]        
Service cost   44 55 49
Interest cost   127 148 180
Expected return on plan assets   (254) (233) (232)
Amortization of prior service cost     8 10
Amortization of net loss   44 41 29
Settlement charge       37
Total pension cost   (39) 19 73
International        
Defined Benefit Plan Disclosure [Line Items]        
Service cost   117 140 112
Interest cost   267 301 333
Expected return on plan assets   (640) (591) (592)
Amortization of prior service cost       7
Amortization of net loss   227 159 70
Total pension cost   $ (29) $ 9 $ (70)