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Document and Entity Information
Aug. 18, 2021
Cover [Abstract]  
Amendment Flag true
Entity Central Index Key 0001110803
Document Type 8-K/A
Document Period End Date Aug. 18, 2021
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 August 18, 2021, Illumina, Inc., a Delaware corporation (“Illumina”), filed a Current Report on Form 8-K (the “Original 8-K”) to report the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of September 20, 2020 (the “Original Merger Agreement”) (such transactions, the “Transaction”), as amended on February 4, 2021 by the Amendment to the Agreement and Plan of Merger (the “Merger Agreement Amendment” and the Original Merger Agreement as amended by the Merger Agreement Amendment, the “Merger Agreement”), by and among Illumina, GRAIL, Inc., a Delaware corporation (“GRAIL”), SDG Ops, Inc., a Delaware corporation and a direct, wholly owned subsidiary of Illumina (“First Merger Sub”), SDG Ops, LLC, a Delaware limited liability company and a direct, wholly owned subsidiary of Illumina (“Second Merger Sub” and now known as GRAIL, LLC). Pursuant to the Merger Agreement, First Merger Sub merged with and into GRAIL, with GRAIL continuing as the surviving entity and as a direct, wholly owned subsidiary of Illumina (the “First Merger”). Immediately following the First Merger and as part of the same overall transaction as the First Merger, GRAIL merged with and into Second Merger Sub, with Second Merger Sub being renamed GRAIL, LLC and continuing as the surviving entity and as a direct, wholly owned subsidiary of Illumina. This Current Report on Form 8-K/A (this “Amended 8-K”) amends and supplements the Original 8-K filed by Illumina, and is being filed to provide the historical statements and the pro forma financial information required pursuant to Items 9.01(a) and 9.01(b) of Form 8-K, respectively. In accordance with the requirements of Items 9.01(a)(3) and 9.01(b)(2) of Form 8-K, this Amended 8-K is being filed within 71 calendar days of the date that the Original 8-K was required to be filed with respect to the above referenced transaction.