XML 7 R1.htm IDEA: XBRL DOCUMENT v3.25.3
Document and Entity Information - shares
 9 Months Ended
Sep. 27, 2025
Oct. 17, 2025
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 27, 2025  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q3  
Entity Registrant Name Fortune Brands Innovations, Inc.  
Entity Central Index Key 0001519751  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Trading Symbol FBIN  
Entity Common Stock, Shares Outstanding   120,138,358
Entity Emerging Growth Company false  
Entity Small Business false  
Entity Current Reporting Status Yes  
Entity Shell Company false  
Entity File Number 1-35166  
Entity Tax Identification Number 62-1411546  
Entity Address, Address Line One 1 Horizon Way, Building N  
Entity Address, City or Town Deerfield  
Entity Address, State or Province IL  
Entity Address, Postal Zip Code 60015-3888  
City Area Code 847  
Local Phone Number 484-4400  
Title of 12(b) Security Common Stock  
Security Exchange Name NYSE  
Entity Incorporation, State or Country Code DE  
Document Quarterly Report true  
Document Transition Report false  
Entity Interactive Data Current Yes