v3.26.1
COVER - USD ($)
$ in Billions
 12 Months Ended
Jul. 31, 2026
Aug. 31, 2026
Jan. 31, 2026
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Jul. 31, 2026    
Current Fiscal Year End Date --07-31    
Document Transition Report false    
Entity File Number 001-35594    
Entity Registrant Name Palo Alto Networks, Inc    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 20-2530195    
Entity Address, Address Line One 3000 Tannery Way    
Entity Address, City or Town Santa Clara    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 95054    
City Area Code 408    
Local Phone Number 753-4000    
Title of 12(b) Security Common stock, $0.0001 par value per share    
Trading Symbol PANW    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
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    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction false    
Entity Shell Company false    
Entity Public Float     $ 123.4
Entity Common Stock, Shares Outstanding   818,000,000  
Documents Incorporated by Reference
Portions of the information called for by Part III of this Annual Report on Form 10-K is hereby incorporated by reference from the definitive proxy statement for the registrant’s 2026 annual meeting of stockholders, which will be filed with the Securities and Exchange Commission not later than 120 days after the registrant’s fiscal year ended July 31, 2026.
    
Entity Central Index Key 0001327567    
Amendment Flag false    
Document Fiscal Year Focus 2026    
Document Fiscal Period Focus FY