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Business, Basis of Presentation and Significant Accounting Policies - Revenue Recognition (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Revenue [Line Items]      
Revenue recognition, changes in contract estimates, cost-to-cost method, financial effect, percentage 0.20% 0.10% 0.50%
Revenue recognition, remaining performance obligations, contract price allocated $ 7,700    
Contract with customer, unapproved change orders and/or claims, amount (in dollars) $ 194 $ 271  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01      
Revenue [Line Items]      
Revenue recognition, remaining performance obligations, completion period (in years) 1 year    
Revenue recognition, remaining performance obligations, contract price allocated $ 5,200    
Maximum      
Revenue [Line Items]      
Revenue recognition, changes in contract estimates, cost-to-cost method, financial effect, percentage 5.00% 5.00% 5.00%
Change order or claim approval process, term within which expected to be completed (in years) 1 year    
Revenue Benchmark | Concentration Risk from Type of Arrangement | Master Service and Other Service Agreements      
Revenue [Line Items]      
Concentration risk, percentage of total 40.00% 51.00% 38.00%
Revenue Benchmark | Concentration Risk from Type of Arrangement | Master Service and Other Service Agreements | Point in Time      
Revenue [Line Items]      
Concentration risk, percentage of total 2.00% 4.00% 4.00%