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INFORMATION ON BUSINESS SEGMENTS - Summary of Operating Results For Each Business Segment (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 24, 2018 | Jun. 25, 2017 | Jun. 24, 2018 | Jun. 25, 2017
Net sales |  |  |  |
Total net sales | $ 13,398 | $ 12,563 | $ 25,033 | $ 23,775
Operating profit |  |  |  |
Total operating profit | 1,795 | 1,716 | 3,520 | 3,118
Unallocated items |  |  |  |
Severance and restructuring charges | 96 | 0 | 96 | 0
Severance and restructuring charges | 96 | 0 | 96 | 0
Aeronautics |  |  |  |
Net sales |  |  |  |
Total net sales | 5,321 | 4,922 | 9,719 | 9,042
Missiles and Fire Control |  |  |  |
Net sales |  |  |  |
Total net sales | 2,085 | 1,784 | 3,762 | 3,333
Rotary and Mission Systems |  |  |  |
Net sales |  |  |  |
Total net sales | 3,566 | 3,414 | 6,789 | 6,541
Unallocated items |  |  |  |
Severance and restructuring charges | 96 |  | 96 |
Severance and restructuring charges | 96 |  | 96 |
Restructuring charges, net of tax | $ 76 |  | $ 76 |
Restructuring charges (in dollars per share) | $ 0.26 |  | $ 0.26 |
Space |  |  |  |
Net sales |  |  |  |
Total net sales | $ 2,426 | 2,443 | $ 4,763 | 4,859
Business segments |  |  |  |
Net sales |  |  |  |
Total net sales | 13,398 | 12,563 | 25,033 | 23,775
Operating profit |  |  |  |
Total operating profit | 1,466 | 1,347 | 2,776 | 2,438
Business segments | Aeronautics |  |  |  |
Net sales |  |  |  |
Total net sales | 5,321 | 4,922 | 9,719 | 9,042
Operating profit |  |  |  |
Total operating profit | 572 | 567 | 1,046 | 1,006
Business segments | Missiles and Fire Control |  |  |  |
Net sales |  |  |  |
Total net sales | 2,085 | 1,784 | 3,762 | 3,333
Operating profit |  |  |  |
Total operating profit | 279 | 253 | 540 | 487
Business segments | Rotary and Mission Systems |  |  |  |
Net sales |  |  |  |
Total net sales | 3,566 | 3,414 | 6,789 | 6,541
Operating profit |  |  |  |
Total operating profit | 341 | 271 | 652 | 399
Business segments | Space |  |  |  |
Net sales |  |  |  |
Total net sales | 2,426 | 2,443 | 4,763 | 4,859
Operating profit |  |  |  |
Total operating profit | 274 | 256 | 538 | 546
Segment reconciling items |  |  |  |
Unallocated items |  |  |  |
FAS/CAS operating adjustment | 451 | 404 | 902 | 807
Stock-based compensation | (60) | (57) | (98) | (101)
Severance and restructuring charges | (96) | 0 | (96) | 0
Other, net | 34 | 22 | 36 | (26)
Total unallocated items | 329 | 369 | 744 | 680
Severance and restructuring charges | (96) | 0 | (96) | 0
Intersegment sales |  |  |  |
Net sales |  |  |  |
Total net sales | 692 | 673 | 1,318 | 1,242
Intersegment sales | Aeronautics |  |  |  |
Net sales |  |  |  |
Total net sales | 27 | 40 | 52 | 65
Intersegment sales | Missiles and Fire Control |  |  |  |
Net sales |  |  |  |
Total net sales | 113 | 66 | 208 | 139
Intersegment sales | Rotary and Mission Systems |  |  |  |
Net sales |  |  |  |
Total net sales | 504 | 548 | 965 | 993
Intersegment sales | Space |  |  |  |
Net sales |  |  |  |
Total net sales | $ 48 | $ 19 | $ 93 | 45
Advanced Military Maintenance, Repair and Overhaul Center |  |  |  |
Unallocated items |  |  |  |
Equity method investee impairment |  |  |  | 64
Equity method investee impairment, after tax |  |  |  | $ 40
Equity method investee impairment (in dollars per share) |  |  |  | $ 0.14

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