CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Oct. 03, 2025 |
Sep. 27, 2024 |
Oct. 03, 2025 |
Sep. 27, 2024 |
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| Statement of Comprehensive Income [Abstract] | ||||
| Net income | $ 462 | $ 404 | $ 1,306 | $ 1,056 |
| Other comprehensive (loss) income, net of income taxes: | ||||
| Foreign currency translation and other, net | (1) | 48 | 67 | 24 |
| Pension and other postretirement benefits | 0 | 0 | (43) | 3 |
| Other comprehensive (loss) income recognized during the period | (1) | 48 | 24 | 27 |
| Reclassification adjustments for gains included in net income | (8) | (8) | (29) | (23) |
| Other comprehensive (loss) income | (9) | 40 | (5) | 4 |
| Other comprehensive income | 453 | 444 | 1,301 | 1,060 |
| Comprehensive income attributable to noncontrolling interest | 0 | (4) | 0 | (7) |
| Other comprehensive income attributable to L3Harris | $ 453 | $ 440 | $ 1,301 | $ 1,053 |
| X | ||||||||||
- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after tax, before reclassification adjustments of other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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| X | ||||||||||
- Definition Amount after tax of other comprehensive income (loss) attributable to noncontrolling interests. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after tax, before reclassification adjustment, of (increase) decrease in accumulated other comprehensive income of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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