| **BUSINESS COMBINIATION - Pro Forma Results (Details) - USD ($) $ in Millions** | 6 Months Ended | 12 Months Ended |
|---------------------------------------------------------------------------------|----------------|-----------------|
||
| **Business Acquisition [Line Items]**                                           |           |            |   |   |   |
| Revenue from product sales and services — as reported                     | $ 9,263        | $ 3,208         | $ 6,801 | $ 6,168 | $ 5,897 |
| Income from continuing operations — as reported                           | $ 835          | 441             | $ 953 | $ 702 | $ 628 |
| L3Harris                                                                        |           |            |   |   |   |
| **Business Acquisition [Line Items]**                                           |           |            |   |   |   |
| Revenue from product sales and services — as reported                     |           | 3,208           |   |   |   |
| Revenue from product sales and services — pro forma                       |           | 8,404           |   |   |   |
| Income from continuing operations — as reported                           |           | 441             |   |   |   |
| Income from continuing operations — pro forma                             |           | $ 760           |   |   |   |

| X                                                                                                                                                                                                                                                                                                                                                                                                                    |
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| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
+ References
No definition available.
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| - Definition
Amount after tax of pro forma income from continuing operations as if the business combination had been completed at the beginning of a period.
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| - Definition
The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.
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| - Definition
Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest.
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| - Definition
Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.
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| X                                                                                                                                                          |
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