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SEGMENT INFORMATION (Tables) | 9 Months Ended
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Sep. 29, 2024
Segment Reporting [Abstract] |
Schedule of Operating Performance and Assets by Segment | We completed the Spin-Off of GRAIL on June 24, 2024. Refer to note 2. GRAIL Spin-Off for additional details.
In millions | Q3 2024 |  | Q3 2023 |  | YTD 2024 |  | YTD 2023
Revenue: |  |  |  |  |  |  |
Core Illumina | $ | 1,080 |  |  | $ | 1,106 |  |  | $ | 3,228 |  |  | $ | 3,341 |
GRAIL | — |  |  | 21 |  |  | 55 |  |  | 62 |
Eliminations | — |  |  | (8) |  |  | (15) |  |  | (21) |
Consolidated revenue | $ | 1,080 |  |  | $ | 1,119 |  |  | $ | 3,268 |  |  | $ | 3,382 |
Income (loss) from operations: |  |  |  |  |  |  |
Core Illumina | $ | 741 |  |  | $ | 262 |  |  | $ | 1,298 |  |  | $ | 519 |
GRAIL | — |  |  | (1,015) |  |  | (2,305) |  |  | (1,424) |
Eliminations | — |  |  | (1) |  |  | (1) |  |  | — |
Consolidated income (loss) from operations | $ | 741 |  |  | $ | (754) |  |  | $ | (1,008) |  |  | $ | (905) |

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-25 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 + Details
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