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EMPLOYEE BENEFIT PLANS	12 Months Ended
	Dec. 29, 2024
Postemployment Benefits [Abstract]
EMPLOYEE BENEFIT PLANS	11. EMPLOYEE BENEFIT PLANS Retirement Plan We have a 401(k) savings plan covering substantially all of our employees in the United States. Our contributions to the plan are discretionary. During 2024, 2023, and 2022, we made matching contributions of $34 million, $36 million, and $30 million, respectively. Deferred Compensation Plan The Illumina, Inc. Deferred Compensation Plan (the Plan) allows senior level employees to contribute up to 60% of their base salary and 100% of their variable cash compensation, and members of the board of directors to contribute up to 100% of their director fees and equity awards. Under the Plan, we credit the participants’ contributions with earnings that reflect the performance of certain independent investment funds. On a discretionary basis, we may also make employer contributions to participant accounts in any amount determined by us. The vesting schedules of employer contributions are at the sole discretion of the Compensation Committee. However, all employer contributions shall become 100% vested upon the occurrence of the participant’s disability, death or retirement or a change in control of Illumina. The benefits under this plan are unsecured. Participants are generally eligible to receive payment of their vested benefit at the end of their elected deferral period or after termination of their employment for any reason or at a later date to comply with the restrictions of Section 409A. We established a rabbi trust for the benefit of the participants under the Plan and have included the assets of the rabbi trust in other assets in the consolidated balance sheets. As of December 29, 2024 and December 31, 2023, the assets of the trust were $70 million and $61 million, respectively, and our liabilities, included in accrued liabilities, were $65 million and $59 million, respectively. Changes in the values of the assets held by the trust are recorded in other expense, net, and changes in the values of the deferred compensation liabilities are recorded in operating expense.

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- Definition

The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans.

+ References

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-Topic 710
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/710/tableOfContent

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-Topic 712
-Name Accounting Standards Codification
-Publisher FASB
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-Topic 715
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/715/tableOfContent

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/718/tableOfContent

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- References

No definition available.

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