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SUPPLEMENTAL BALANCE SHEET DETAILS (Tables)

6 Months Ended

Jun. 29, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Accounts Receivable

Accounts Receivable

In millions			June 29, 2025						December 29, 2024
Trade accounts receivable, gross			$	709					$	744
Allowance for credit losses			(8)						(9)
Total accounts receivable, net			$	701					$	735

Schedule of Inventory

Inventory

In millions			June 29, 2025						December 29, 2024
Raw materials			$	227					$	225
Work in process			419						404
Finished goods			47						31
Inventory, gross			693						660
Inventory reserve			(118)						(113)
Total inventory, net			$	575					$	547

Schedule of Accrued Liabilities

Accrued Liabilities

In millions			June 29, 2025						December 29, 2024
Contract liabilities, current portion			$	247					$	260
Accrued compensation expenses (1)			214						252
Accrued taxes payable			75						101
Operating lease liabilities, current portion			79						79
Other, including warranties (2)			147						135
Total accrued liabilities			$	762					$	827

_____________

(1)Includes employee separation costs related to restructuring activities.

(2)See table below for changes in the reserve for product warranties.

Schedule of Changes in Reserve for Product Warranties

Changes in the reserve for product warranties were as follows:

In millions			Q2 2025						Q2 2024						YTD 2025						YTD 2024
Balance at beginning of period			$	17					$	20					$	18					$	21
Additions charged to cost of product revenue			6						10						14						22
Repairs and replacements			(7)						(13)						(16)						(26)
Balance at end of period			$	16					$	17					$	16					$	17

Schedule Of Restructuring and Related Costs

A summary of the pre-tax restructuring charges is as follows:

In millions			Q2 2025						Q2 2024						YTD 2025						YTD 2024						Cumulative charges recorded since inception
Employee separation costs			$	8					$	3					$	39					$	7					$	99
Asset impairment charges (1)			—						—						—						32						146
Other costs			—						1						—						1						8
Total restructuring charges (2)			$	8					$	4					$	39					$	40					$	253

_____________

(1)For YTD 2024, primarily relates to impairment of right-of-use assets and leasehold improvements for our Foster City campus.

(2)For Q2 2025, $4 million was recorded in R&D expense, $3 million in SG&A expense, with remainder in cost of revenue.

For YTD 2025, $22 million was recorded in SG&A expense, $14 million in R&D expense, with remainder in cost of revenue.

For Q2 2024, $4 million was recorded in SG&A expense. For YTD 2024, $39 million was recorded in SG&A expense, with remainder in R&D expense. Restructuring charges for Q2 2024 and YTD 2024 primarily related to Core Illumina segment.

A summary of restructuring liability activity during YTD 2025 is as follows:

In millions			Employee Separation Costs (1)												Other Costs						Total
Amount recorded in accrued liabilities as of December 29, 2024			$	2											$	2					$	4
Additional expense recorded			39												—						39
Cash payments			(20)												(2)						(22)
Adjustments to accrual			(2)												—						(2)
Amount recorded in accrued liabilities as of June 29, 2025			$	19											$	—					$	19
Estimated costs to still be incurred			$	(3)											$	—					$	(3)

_____________

(1)It is expected that substantially all of the employee separation related charges will be incurred and paid by the end of Q4 2025.

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