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Unapproved Change Orders and Claims Against Clients and Estimated Recoveries of Claims Against Suppliers and Subcontractors (Narrative) (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Sep. 30, 2021
Jun. 30, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Oct. 31, 2021
Increases in Unapproved Change Orders and Claims [Line Items]            
Non-cash charge to equity in earnings of unconsolidated affiliates     $ 170 $ (30) $ (35)  
Commitments, estimated recovery     1,600      
Gross profit     806 666 653  
Sustainable Technology Solutions            
Increases in Unapproved Change Orders and Claims [Line Items]            
Non-cash charge to equity in earnings of unconsolidated affiliates     199 (2) (6)  
Gross profit     231 173 $ 209  
Ichthys LNG Project            
Increases in Unapproved Change Orders and Claims [Line Items]            
Letters of credit outstanding, amount $ 164         $ 82
Ichthys LNG Project | Sustainable Technology Solutions            
Increases in Unapproved Change Orders and Claims [Line Items]            
Non-cash charge to equity in earnings of unconsolidated affiliates   $ 193 193      
Final warranty $ 10          
EPC Project | Sustainable Technology Solutions            
Increases in Unapproved Change Orders and Claims [Line Items]            
Gross profit     37      
Settlement     $ 20      
Other Legacy Matters | Sustainable Technology Solutions            
Increases in Unapproved Change Orders and Claims [Line Items]            
Settlement       $ 16    
JKC Joint Venture            
Increases in Unapproved Change Orders and Claims [Line Items]            
Variable interest entity, ownership percentage     30.00%