v3.25.2
Cover - shares
6 Months Ended
Aug. 01, 2025
Aug. 22, 2025
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Aug. 01, 2025  
Document Transition Report false  
Entity File Number 001-35832  
Entity Registrant Name Science Applications International Corporation  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 46-1932921  
Entity Address, Address Line One 12010 Sunset Hills Road,  
Entity Address, City or Town Reston,  
Entity Address, State or Province VA  
Entity Address, Postal Zip Code 20190  
City Area Code (703)  
Local Phone Number 676-4300  
Title of 12(b) Security Common Stock, par value $.0001 per share  
Trading Symbol SAIC  
Security Exchange Name NASDAQ  
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   46,022,001
Amendment Flag false  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Entity Central Index Key 0001571123  
Current Fiscal Year End Date --01-30