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INFORMATION ON BUSINESS SEGMENTS - Summary of Operating Results For Each Business Segment (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 25, 2022 | Sep. 26, 2021 | Mar. 28, 2021 | Sep. 25, 2022 | Sep. 26, 2021
Net sales |  |  |  |  |
Total net sales | $ 16,583 | $ 16,028 |  | $ 46,993 | $ 49,315
Operating profit |  |  |  |  |
Total operating profit | 2,159 | 2,294 |  | 6,055 | 6,668
Unallocated items |  |  |  |  |
Severance and restructuring charges | 0 | 0 | $ 36 | 0 | 36
Aeronautics |  |  |  |  |
Net sales |  |  |  |  |
Total net sales | 7,089 | 6,568 |  | 19,352 | 19,621
Missiles and Fire Control |  |  |  |  |
Net sales |  |  |  |  |
Total net sales | 2,831 | 2,781 |  | 8,030 | 8,474
Rotary and Mission Systems |  |  |  |  |
Net sales |  |  |  |  |
Total net sales | 3,781 | 3,980 |  | 11,345 | 12,329
Space |  |  |  |  |
Net sales |  |  |  |  |
Total net sales | 2,882 | 2,699 |  | 8,266 | 8,891
Business Segments |  |  |  |  |
Net sales |  |  |  |  |
Total net sales | 16,583 | 16,028 |  | 46,993 | 49,315
Operating profit |  |  |  |  |
Total operating profit | 1,856 | 1,850 |  | 5,213 | 5,365
Amortization of purchased intangibles |  |  |  |  |
Amortization of purchased intangibles | (62) | (61) |  | (186) | (223)
Business Segments | Aeronautics |  |  |  |  |
Net sales |  |  |  |  |
Total net sales | 7,089 | 6,568 |  | 19,352 | 19,621
Operating profit |  |  |  |  |
Total operating profit | 759 | 714 |  | 2,050 | 1,979
Amortization of purchased intangibles |  |  |  |  |
Amortization of purchased intangibles | 0 | 0 |  | (1) | (1)
Business Segments | Missiles and Fire Control |  |  |  |  |
Net sales |  |  |  |  |
Total net sales | 2,831 | 2,781 |  | 8,030 | 8,474
Operating profit |  |  |  |  |
Total operating profit | 382 | 413 |  | 1,184 | 1,210
Amortization of purchased intangibles |  |  |  |  |
Amortization of purchased intangibles | (1) | (1) |  | (2) | (2)
Business Segments | Rotary and Mission Systems |  |  |  |  |
Net sales |  |  |  |  |
Total net sales | 3,781 | 3,980 |  | 11,345 | 12,329
Operating profit |  |  |  |  |
Total operating profit | 414 | 459 |  | 1,165 | 1,350
Amortization of purchased intangibles |  |  |  |  |
Amortization of purchased intangibles | (58) | (58) |  | (174) | (174)
Business Segments | Space |  |  |  |  |
Net sales |  |  |  |  |
Total net sales | 2,882 | 2,699 |  | 8,266 | 8,891
Operating profit |  |  |  |  |
Total operating profit | 301 | 264 |  | 814 | 826
Amortization of purchased intangibles |  |  |  |  |
Amortization of purchased intangibles | (3) | (2) |  | (9) | (46)
Unallocated items |  |  |  |  |
Unallocated items |  |  |  |  |
FAS/CAS pension operating adjustment | 430 | 491 |  | 1,281 | 1,469
Severance and restructuring charges | 0 | 0 |  | 0 | (36)
Other, net | (127) | (47) |  | (439) | (130)
Total unallocated items | 303 | 444 |  | 842 | 1,303
Intersegment sales |  |  |  |  |
Net sales |  |  |  |  |
Total net sales | 814 | 763 |  | 2,339 | 2,264
Intersegment sales | Aeronautics |  |  |  |  |
Net sales |  |  |  |  |
Total net sales | 63 | 60 |  | 181 | 165
Intersegment sales | Missiles and Fire Control |  |  |  |  |
Net sales |  |  |  |  |
Total net sales | 146 | 153 |  | 463 | 449
Intersegment sales | Rotary and Mission Systems |  |  |  |  |
Net sales |  |  |  |  |
Total net sales | 503 | 455 |  | 1,411 | 1,381
Intersegment sales | Space |  |  |  |  |
Net sales |  |  |  |  |
Total net sales | $ 102 | $ 95 |  | $ 284 | $ 269

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