v3.26.1
BUSINESS SEGMENT INFORMATION - Revenues and Income From Continuing Operations by Segment (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 03, 2026
Jun. 27, 2025
Jul. 03, 2026
Jun. 27, 2025
Segment Reporting [Line Items]        
Revenue $ 5,881 $ 5,426 $ 11,625 $ 10,558
Cost of revenue (4,379) (4,091) (8,721) (7,873)
Total other items (560) (472) (1,060) (1,045)
Operating income 654 571 1,306 1,096
Non-service FAS pension income and other, net [1] 185 105 258 189
Interest expense, net (129) (152) (265) (302)
Income before income taxes 710 524 1,299 983
Gain on investments, net of impairments 39   39  
Operating segments        
Segment Reporting [Line Items]        
Revenue 5,881 5,426 11,625 10,412
Cost of revenue (4,364) (4,064) (8,682) (7,751)
Total other items (575) (499) (1,099) (1,021)
Operating income 942 863 1,844 1,640
Operating segments | Space & Mission Systems        
Segment Reporting [Line Items]        
Revenue 2,966 2,770 5,956 5,181
Cost of revenue (2,442) (2,287) (4,881) (4,235)
Total other items (234) (194) (472) (419)
Operating income 290 289 603 527
Operating segments | Communications & Spectrum Dominance        
Segment Reporting [Line Items]        
Revenue 1,943 1,861 3,798 3,670
Cost of revenue (1,177) (1,185) (2,340) (2,342)
Total other items (244) (218) (471) (427)
Operating income 522 458 987 901
Operating segments | Missile Solutions        
Segment Reporting [Line Items]        
Revenue 1,054 925 2,044 1,765
Cost of revenue (827) (722) (1,634) (1,378)
Total other items (97) (87) (156) (175)
Operating income 130 116 254 212
Intersegment        
Segment Reporting [Line Items]        
Revenue (82) (130) (173) (204)
Cost of revenue 82 130 173 204
Intersegment | Space & Mission Systems        
Segment Reporting [Line Items]        
Revenue (22) (28) (45) (54)
Intersegment | Communications & Spectrum Dominance        
Segment Reporting [Line Items]        
Revenue (48) (94) (105) (123)
Intersegment | Missile Solutions        
Segment Reporting [Line Items]        
Revenue (12) (8) (23) (26)
Other        
Segment Reporting [Line Items]        
Revenue 0 0 0 146
Cost of revenue (15) (27) (39) (122)
Total other items 15 27 39 (24)
Corporate        
Segment Reporting [Line Items]        
Operating income $ (288) $ (292) $ (538) $ (544)
[1] “FAS” is defined as Financial Accounting Standards.