v3.26.3
Charges and Credits - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Jun. 30, 2026
Mar. 31, 2026
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Sep. 30, 2026
Sep. 30, 2025
Charges And Credits [Line Items]                
Defined benefit plan, plan assets, payment for settlement             $ 900  
Non-cash pension settlement charge             187 $ 0
Severance charges       $ 57 $ 66 $ 158    
Other restructuring charges       52 69      
Proceeds from sale of Palliser APS project       22 338      
Gain of equity method investments         149   0 149
Merger & integration $ 55     143     $ 165 $ 226
Subsea Business                
Charges And Credits [Line Items]                
Other merger and integration-related costs       28        
Change-in-control arrangements       54        
Merger & integration       143        
Cost of services and sales       66        
Aker Solutions | Subsea Business                
Charges And Credits [Line Items]                
Business acquisition pre tax charges         $ 35 $ 49    
ChampionX Corporation                
Charges And Credits [Line Items]                
Business acquisition pre tax charges 55 $ 69 $ 41          
ChampionX Corporation | Subsea Business                
Charges And Credits [Line Items]                
Amortization of purchase accounting adjustments related to acquired inventories       66        
Other merger and integration-related costs       $ 61        
International Staff Pension Plan                
Charges And Credits [Line Items]                
Non-cash pension settlement charge $ 187