v3.25.3
Business Segments (Segment Reporting Information by Segment) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Oct. 03, 2025
Sep. 27, 2024
Oct. 03, 2025
Sep. 27, 2024
Segment Reporting Information [Line Items]        
Revenues $ 4,469 $ 4,190 $ 12,967 $ 12,297
Amortization of intangible assets 34 37 96 110
Corporate expense 0 0 (1) 4
Total operating income 535 516 1,636 1,406
Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 4,469 4,190 12,967 12,297
Direct labor 968 921 2,865 2,778
Amortization of intangible assets 34 37 96 110
Other segment expense 2,873 2,680 8,277 7,892
Segment operating income 594 552 1,729 1,517
Corporate expense        
Segment Reporting Information [Line Items]        
Corporate expense 59 36 93 111
National Security & Digital | Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 2,015 1,865 5,765 5,471
Direct labor 510 483 1,503 1,454
Amortization of intangible assets 8 6 20 17
Other segment expense 1,306 1,189 3,678 3,455
Segment operating income 191 187 564 545
Health & Civil | Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 1,301 1,225 3,864 3,687
Direct labor 236 232 715 711
Amortization of intangible assets 6 8 18 21
Other segment expense 731 698 2,193 2,139
Segment operating income 328 287 938 816
Commercial & International | Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 571 578 1,705 1,648
Direct labor 109 103 317 306
Amortization of intangible assets 7 7 21 22
Other segment expense 417 427 1,252 1,256
Segment operating income 38 41 115 64
Defense Systems | Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 582 522 1,633 1,491
Direct labor 113 103 330 307
Amortization of intangible assets 13 16 37 50
Other segment expense 419 366 1,154 1,042
Segment operating income $ 37 $ 37 $ 112 $ 92