v3.26.1
Cover - shares
 3 Months Ended
Apr. 04, 2026
May 05, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Apr. 04, 2026  
Document Transition Report false  
Entity File Number 001-38635  
Entity Registrant Name Resideo Technologies, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 82-5318796  
Entity Address, Address Line One 16100 N. 71st Street  
Entity Address, Address Line Two Suite 550  
Entity Address, City or Town Scottsdale  
Entity Address, State or Province AZ  
Entity Address, Postal Zip Code 85254  
City Area Code 480  
Local Phone Number 573-5340  
Title of 12(b) Security Common Stock, par value $0.001 per share  
Trading Symbol REZI  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   151,426,260
Amendment Flag false  
Document Fiscal Period Focus Q1  
Current Yes Fiscal Year End --12-31  
Document Fiscal Year Focus 2026  
Entity Central Index Key 0001740332