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Cover page - shares
 6 Months Ended
Dec. 29, 2023
Jan. 22, 2024
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Dec. 29, 2023  
Document Transition Report false  
Entity File Number 001-31560  
Entity Incorporation, State or Country Code L2  
Entity Tax Identification Number 98-1597419  
Entity Address, Address Line One 121 Woodlands Avenue 5  
Entity Address, City or Town Singapore  
Entity Address, Country SG  
Entity Address, Postal Zip Code 739009  
City Area Code 65  
Local Phone Number 6018-2562  
Title of 12(b) Security Ordinary Shares, par value $0.00001 per share  
Trading Symbol STX  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Smaller Reporting Company false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   209,510,729
Entity Registrant Name Seagate Technology Holdings plc  
Entity Central Index Key 0001137789  
Amendment Flag false  
Document Fiscal Year Focus 2024  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --06-28