v3.25.3
Revenue - Revenue by Contract Type (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
Fixed-price        
Revenue [Line Items]        
Total revenue 7,926 7,232 24,173 21,542
Cost-reimbursement        
Revenue [Line Items]        
Total revenue 4,210 3,674 11,654 10,545
Time-and-materials        
Revenue [Line Items]        
Total revenue 771 765 2,344 2,291
Aerospace        
Revenue [Line Items]        
Total revenue 3,234 2,482 9,322 7,506
Aerospace | Fixed-price        
Revenue [Line Items]        
Total revenue 2,968 2,250 8,527 6,772
Aerospace | Cost-reimbursement        
Revenue [Line Items]        
Total revenue 0 0 0 0
Aerospace | Time-and-materials        
Revenue [Line Items]        
Total revenue 266 232 795 734
Marine Systems        
Revenue [Line Items]        
Total revenue 4,096 3,599 11,905 10,383
Marine Systems | Fixed-price        
Revenue [Line Items]        
Total revenue 1,664 1,666 5,665 4,893
Marine Systems | Cost-reimbursement        
Revenue [Line Items]        
Total revenue 2,432 1,933 6,237 5,489
Marine Systems | Time-and-materials        
Revenue [Line Items]        
Total revenue 0 0 3 1
Combat Systems        
Revenue [Line Items]        
Total revenue 2,252 2,212 6,711 6,602
Combat Systems | Fixed-price        
Revenue [Line Items]        
Total revenue 1,930 1,957 5,731 5,844
Combat Systems | Cost-reimbursement        
Revenue [Line Items]        
Total revenue 306 238 933 706
Combat Systems | Time-and-materials        
Revenue [Line Items]        
Total revenue 16 17 47 52
Technologies        
Revenue [Line Items]        
Total revenue 3,325 3,378 10,233 9,887
Technologies | Fixed-price        
Revenue [Line Items]        
Total revenue 1,364 1,359 4,250 4,033
Technologies | Cost-reimbursement        
Revenue [Line Items]        
Total revenue 1,472 1,503 4,484 4,350
Technologies | Time-and-materials        
Revenue [Line Items]        
Total revenue $ 489 $ 516 $ 1,499 $ 1,504