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Document and Entity Information
Jun. 03, 2024
Cover [Abstract]  
Amendment Flag true
Entity Central Index Key 0001110803
Document Type 8-K/A
Document Period End Date Jun. 03, 2024
Entity Registrant Name Illumina, Inc.
Entity File Number 001-35406
Entity Incorporation State Country Code DE
Entity Tax Identification Number 33-0804655
Entity Address, Address Line One 5200 Illumina Way
Entity Address, City or Town San Diego
Entity Address, State or Province CA
Entity Address, Postal Zip Code 92122
City Area Code (858)
Local Phone Number 202-4500
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $0.01 par value
Trading Symbol ILMN
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Amendment Description On June 3, 2024, Illumina, Inc. (the “Company” or “Illumina”) filed a Current Report on Form 8-K (the “Original 8-K”) to announce that its board of directors approved the separation (the “Spin-Off”) of GRAIL, LLC (“GRAIL”), to be effected by the Company’s distribution of at least 85.5% of the shares of common stock of GRAIL, par value $0.001 per share, to holders of common stock of the Company as a pro rata dividend in the Spin-Off (the “Distribution”). The Original 8-K also included information regarding anticipated dates affecting the trading of GRAIL’s and Illumina’s common stock in connection with the Distribution. This Form 8-K/A is being filed to further clarify those dates.