v3.26.3
Business, Basis of Presentation and Significant Accounting Policies - Revenue Recognition (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Revenue [Line Items]          
Revenue recognition, changes In contract estimates, cost-to-cost method, financial effect, percentage (less than) 0.20% 0.60% 0.50% 1.00%  
Revenue recognition, remaining performance obligations, contract price allocated $ 19,100.0   $ 19,100.0    
Contract with customer, unapproved change orders and/or claims, amount 334.0   334.0   $ 229.0
Supplier finance program obligation 130.4   130.4   $ 125.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-10-01          
Revenue [Line Items]          
Revenue recognition, remaining performance obligations, contract price allocated $ 4,300.0   $ 4,300.0    
Revenue, remaining performance obligation, percentage 22.50%   22.50%    
Revenue, remaining performance obligation, expected timing of satisfaction, period 3 months   3 months    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-10-01          
Revenue [Line Items]          
Revenue, remaining performance obligation, expected timing of satisfaction, period 2 years   2 years    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01          
Revenue [Line Items]          
Revenue, remaining performance obligation, expected timing of satisfaction, period      
Maximum          
Revenue [Line Items]          
Change order or claim approval process, term within which expected to be completed     1 year    
Master Service and Other Service Agreements | Revenue Benchmark | Concentration Risk from Type of Arrangement          
Revenue [Line Items]          
Concentration risk, percentage of total 35.00% 43.00% 38.00% 45.00%  
Master Service and Other Service Agreements | Revenue Benchmark | Concentration Risk from Type of Arrangement | Point in Time          
Revenue [Line Items]          
Concentration risk, percentage of total 2.00% 1.00% 2.00% 1.00%