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Operating Information by Segment and Geographic Area - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended 9 Months Ended
Apr. 30, 2022
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Segment Reporting Information [Line Items]            
Proceeds from sale of NuScale interest       $ 107 $ 0  
Temporary APIC   $ 107   107   $ 0
Disposal Group, Not Discontinued Operations            
Segment Reporting Information [Line Items]            
Proceeds from sale of NuScale interest $ 107          
Temporary APIC   107   107    
NuScale | Disposal Group, Not Discontinued Operations | Japan NuScale Innovation            
Segment Reporting Information [Line Items]            
Entity's interest in partnership or joint venture (as a percent) 5.00%          
Energy Solutions            
Segment Reporting Information [Line Items]            
Expense from embedded foreign currency derivatives   5 $ 18 1 30  
Urban Solutions | Highway Project            
Segment Reporting Information [Line Items]            
Effect of forecast revision on estimated project cost   $ 64   $ 86    
Effect of forecast revision on estimated project cost (in dollars per share)   $ 0.37   $ 0.50    
Urban Solutions | International Bridge Project            
Segment Reporting Information [Line Items]            
Effect of forecast revision on estimated project cost   $ 22   $ 54 $ 138  
Effect of forecast revision on estimated project cost (in dollars per share)   $ 0.09   $ 0.23 $ 0.72  
Urban Solutions | Automated People Move Project            
Segment Reporting Information [Line Items]            
Effect of forecast revision on estimated project cost   $ 21   $ 35    
Effect of forecast revision on estimated project cost (in dollars per share)   $ 0.12   $ 0.20