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INFORMATION ON BUSINESS SEGMENTS - Summary Operating Results For Each Business Segment (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 24, 2023 | Sep. 25, 2022 | Sep. 24, 2023 | Sep. 25, 2022
Net sales |  |  |  |
Total net sales | $ 16,878 | $ 16,583 | $ 48,697 | $ 46,993
Operating profit |  |  |  |
Total operating profit | 2,042 | 2,159 | 6,214 | 6,055
Aeronautics |  |  |  |
Net sales |  |  |  |
Total net sales | 6,717 | 7,089 | 19,861 | 19,352
Missiles and Fire Control |  |  |  |
Net sales |  |  |  |
Total net sales | 2,939 | 2,831 | 8,082 | 8,030
Rotary and Mission Systems |  |  |  |
Net sales |  |  |  |
Total net sales | 4,121 | 3,781 | 11,528 | 11,345
Space |  |  |  |
Net sales |  |  |  |
Total net sales | 3,101 | 2,882 | 9,226 | 8,266
Business Segments |  |  |  |
Net sales |  |  |  |
Total net sales | 16,878 | 16,583 | 48,697 | 46,993
Operating profit |  |  |  |
Total operating profit | 1,810 | 1,918 | 5,347 | 5,399
Business Segments | Aeronautics |  |  |  |
Net sales |  |  |  |
Total net sales | 6,717 | 7,089 | 19,861 | 19,352
Operating profit |  |  |  |
Total operating profit | 671 | 759 | 2,064 | 2,051
Business Segments | Missiles and Fire Control |  |  |  |
Net sales |  |  |  |
Total net sales | 2,939 | 2,831 | 8,082 | 8,030
Operating profit |  |  |  |
Total operating profit | 398 | 383 | 1,146 | 1,186
Business Segments | Rotary and Mission Systems |  |  |  |
Net sales |  |  |  |
Total net sales | 4,121 | 3,781 | 11,528 | 11,345
Operating profit |  |  |  |
Total operating profit | 482 | 472 | 1,286 | 1,339
Business Segments | Space |  |  |  |
Net sales |  |  |  |
Total net sales | 3,101 | 2,882 | 9,226 | 8,266
Operating profit |  |  |  |
Total operating profit | 259 | 304 | 851 | 823
Unallocated items |  |  |  |
Unallocated items |  |  |  |
Total FAS/CAS pension operating adjustment | 414 | 430 | 1,245 | 1,281
Intangible asset amortization expense | (61) | (62) | (185) | (186)
Other, net | (121) | (127) | (193) | (439)
Total unallocated items | 232 | 241 | 867 | 656
Intersegment sales |  |  |  |
Net sales |  |  |  |
Total net sales | 854 | 814 | 2,455 | 2,339
Intersegment sales | Aeronautics |  |  |  |
Net sales |  |  |  |
Total net sales | 62 | 63 | 186 | 181
Intersegment sales | Missiles and Fire Control |  |  |  |
Net sales |  |  |  |
Total net sales | 177 | 146 | 482 | 463
Intersegment sales | Rotary and Mission Systems |  |  |  |
Net sales |  |  |  |
Total net sales | 518 | 503 | 1,512 | 1,411
Intersegment sales | Space |  |  |  |
Net sales |  |  |  |
Total net sales | $ 97 | $ 102 | $ 275 | $ 284

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