v3.25.3
Revenue - Revenue by Products and Services (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 28, 2025
Sep. 29, 2024
Sep. 28, 2025
Sep. 29, 2024
Revenue [Line Items]        
Total revenue $ 12,907 $ 11,671 $ 38,171 $ 34,378
Aerospace        
Revenue [Line Items]        
Total revenue 3,234 2,482 9,322 7,506
Aerospace | Aircraft manufacturing        
Revenue [Line Items]        
Total revenue 2,293 1,686 6,590 5,014
Aerospace | Aircraft services        
Revenue [Line Items]        
Total revenue 941 796 2,732 2,492
Marine Systems        
Revenue [Line Items]        
Total revenue 4,096 3,599 11,905 10,383
Marine Systems | Nuclear-powered submarines        
Revenue [Line Items]        
Total revenue 3,166 2,630 9,054 7,496
Marine Systems | Surface ships        
Revenue [Line Items]        
Total revenue 642 658 2,012 2,023
Marine Systems | Repair and other services        
Revenue [Line Items]        
Total revenue 288 311 839 864
Combat Systems        
Revenue [Line Items]        
Total revenue 2,252 2,212 6,711 6,602
Combat Systems | Military vehicles        
Revenue [Line Items]        
Total revenue 1,231 1,295 3,730 3,850
Combat Systems | Weapons systems, armament and munitions        
Revenue [Line Items]        
Total revenue 742 658 2,169 2,033
Combat Systems | Engineering and other services        
Revenue [Line Items]        
Total revenue 279 259 812 719
Technologies        
Revenue [Line Items]        
Total revenue 3,325 3,378 10,233 9,887
Technologies | Information technology (IT) services        
Revenue [Line Items]        
Total revenue 2,229 2,220 6,912 6,556
Technologies | C5ISR* solutions        
Revenue [Line Items]        
Total revenue [1] $ 1,096 $ 1,158 $ 3,321 $ 3,331
[1] Command, control, communications, computers, cyber, intelligence, surveillance and reconnaissance