v3.22.4
Cover - shares
 3 Months Ended
Dec. 24, 2022
Feb. 01, 2023
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Dec. 24, 2022  
Document Transition Report false  
Entity File Number 001-40175  
Entity Registrant Name SYMBOTIC INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 98-1572401  
Entity Address, Address Line One 200 Research Drive  
Entity Address, City or Town Wilmington  
Entity Address, State or Province MA  
Entity Address, Postal Zip Code 01887  
City Area Code 978  
Local Phone Number 284-2800  
Title of 12(b) Security Class A common stock, par value $0.0001 per share  
Trading Symbol SYM  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Central Index Key 0001837240  
Amendment Flag false  
Document Fiscal Year Focus 2023  
Document Fiscal Period Focus Q1  
Current Fiscal Year End Date --09-30  
Class A Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   60,197,285
Class V-1 Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   78,389,034
Class V-3 Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   416,933,025