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Document and Entity Information
Nov. 16, 2020
Cover [Abstract]  
Amendment Flag false
Entity Central Index Key 0001740332
Document Type 8-K
Document Period End Date Nov. 16, 2020
Entity Registrant Name RESIDEO TECHNOLOGIES, INC.
Entity Incorporation State Country Code DE
Entity File Number 001-38635
Entity Tax Identification Number 82-5318796
Entity Address, Address Line One 901 East 6th Street
Entity Address, City or Town Austin
Entity Address, State or Province TX
Entity Address, Postal Zip Code 78702
City Area Code (763)
Local Phone Number 954-5204
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $0.001 Par Value
Trading Symbol REZI
Security Exchange Name NYSE
Entity Emerging Growth Company false