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SUPPLEMENTAL BALANCE SHEET DETAILS (Tables)

12 Months Ended

Dec. 29, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Accounts Receivable

Accounts Receivable

In millions			December 29, 2024						December 31, 2023
Trade accounts receivable, gross			$	744					$	741
Allowance for credit losses			(9)						(7)
Total accounts receivable, net			$	735					$	734

Schedule of Inventory

Inventory

In millions			December 29, 2024						December 31, 2023
Raw materials			$	225					$	276
Work in process			404						402
Finished goods			31						30
Inventory, gross			660						708
Inventory reserve			(113)						(121)
Total inventory, net			$	547					$	587

Schedule of Property and Equipment

The estimated useful lives of the major classes of property and equipment are generally as follows:

Buildings and leasehold improvements			4 to 20 years
Machinery and equipment			3 to 5 years
Computer hardware and software			3 to 9 years
Furniture and fixtures			7 years

Property and Equipment

In millions			December 29, 2024						December 31, 2023
Leasehold improvements			$	772					$	803
Machinery and equipment			683						684
Computer hardware and software			478						463
Furniture and fixtures			53						55
Buildings			44						44
Construction in progress			39						96
Total property and equipment, gross			2,069						2,145
Accumulated depreciation			(1,254)						(1,138)
Total property and equipment, net			$	815					$	1,007

Schedule of Accrued Liabilities

Accrued Liabilities

In millions			December 29, 2024						December 31, 2023
Legal contingencies(1)			$	26					$	484
Contract liabilities, current portion			260						252
Accrued compensation expenses			252						223
Accrued taxes payable			101						79
Operating lease liabilities, current portion			79						86
Liability-classified equity incentive awards			—						55
Other, including warranties(2)			109						146
Total accrued liabilities			$	827					$	1,325

_____________

(1)See note 9. Legal Proceedings for additional details.

(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
Balance as of January 2, 2022			$	22
Additions charged to cost of product revenue			23
Repairs and replacements			(27)
Balance as of January 1, 2023			18
Additions charged to cost of product revenue			42
Repairs and replacements			(39)
Balance as of December 31, 2023			21
Additions charged to cost of product revenue			42
Repairs and replacements			(45)
Balance as of December 29, 2024			$	18

Schedule of Restructuring and Related Costs

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

In millions			2024						2023						Cumulative charges recorded since inception
Employee separation costs			$	12					$	48					$	60
Asset impairment charges(1)			46						100						146
Other costs			4						4						8
Total restructuring charges(2)			$	62					$	152					$	214

_____________

(1)For 2024, relates to impairment of right-of-use assets and leasehold improvements for Foster City campus and other property in San Diego.

For 2023, primarily relates to impairment of right-of-use assets and leasehold improvements for our i3 and Foster City campuses.

(2)For 2024, $59 million was recorded in SG&A expense, $2 million in R&D expense, and remainder in cost of revenue.

For 2023, $122 million was recorded in SG&A expense, $24 million in R&D expense, and remainder in cost of revenue.

Total restructuring charges primarily relate to our Core Illumina segment.

A summary of the restructuring liability is as follows:

In millions			Employee Separation Costs						Other Costs						Total
Amount recorded in accrued liabilities as of January 1, 2023			$	—					$	—					$	—
Expense recorded			48						4						52
Cash payments			(31)						(3)						(34)
Amount recorded in accrued liabilities as of December 31, 2023			17						1						18
Expense recorded			12						4						16
Cash payments			(24)						(2)						(26)
Adjustments to accrual			(3)						(1)						(4)
Amount recorded in accrued liabilities as of December 29, 2024			$	2					$	2					$	4

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