v3.26.1
Revenue (Schedule of Revenue by Customer Type) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 03, 2026
Jul. 04, 2025
Jul. 03, 2026
Jul. 04, 2025
Disaggregation of Revenue [Line Items]        
Total revenue $ 1,984 $ 1,952 $ 3,907 $ 3,970
MTS        
Disaggregation of Revenue [Line Items]        
Total revenue 1,308 1,336 2,604 2,717
STS        
Disaggregation of Revenue [Line Items]        
Total revenue 676 616 1,303 1,253
U.S. Government Defense and Intelligence Clients        
Disaggregation of Revenue [Line Items]        
Total revenue 834 856 1,650 1,762
U.S. Government Defense and Intelligence Clients | MTS        
Disaggregation of Revenue [Line Items]        
Total revenue 834 856 1,650 1,762
U.S. Government Defense and Intelligence Clients | STS        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
U.S. Government Federal Civilian Clients        
Disaggregation of Revenue [Line Items]        
Total revenue 254 273 516 554
U.S. Government Federal Civilian Clients | MTS        
Disaggregation of Revenue [Line Items]        
Total revenue 254 273 516 554
U.S. Government Federal Civilian Clients | STS        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
International Government Clients        
Disaggregation of Revenue [Line Items]        
Total revenue 237 223 475 442
International Government Clients | MTS        
Disaggregation of Revenue [Line Items]        
Total revenue 199 181 391 348
International Government Clients | STS        
Disaggregation of Revenue [Line Items]        
Total revenue 38 42 84 94
Commercial and Infrastructure Clients        
Disaggregation of Revenue [Line Items]        
Total revenue 659 600 1,266 1,212
Commercial and Infrastructure Clients | MTS        
Disaggregation of Revenue [Line Items]        
Total revenue 21 26 47 53
Commercial and Infrastructure Clients | STS        
Disaggregation of Revenue [Line Items]        
Total revenue $ 638 $ 574 $ 1,219 $ 1,159