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ACQUISITIONS, DIVESTITURES AND ASSET SALES - Acquisition of AJRD - Calculation of Consideration Transferred (Details) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Jul. 28, 2023 | Dec. 29, 2023 | Dec. 30, 2022 | Dec. 31, 2021
Business Acquisition [Line Items] |  |  |  |
Fair value of consideration transferred |  | $ 6,688 | $ 0 | $ 0
AR |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash consideration paid for AJRD outstanding common stock & equity awards | $ 4,748 |  |  |
AJRD debt settled by L3Harris | 257 |  |  |
Cash consideration paid | 5,005 |  |  |
Less cash acquired | (290) |  |  |
Fair value of consideration transferred | $ 4,715 |  |  |

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