v3.25.4
Cover - USD ($)
12 Months Ended
Dec. 31, 2025
Feb. 09, 2026
Jun. 30, 2025
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-12307    
Entity Registrant Name ZIONS BANCORPORATION, NATIONAL ASSOCIATION    
Entity Incorporation, State or Country Code X1    
Entity Tax Identification Number 87-0189025    
Entity Address, Address Line One One South Main    
Entity Address, City or Town Salt Lake City,    
Entity Address, State or Province UT    
Entity Address, Postal Zip Code 84133-1109    
City Area Code 801    
Local Phone Number 844-7637    
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 [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 7,521,166,801
Entity Common Stock, Shares Outstanding   147,888,829  
Documents Incorporated by Reference
Part III: Items 10-14 — Proxy Statement for the 2026 Annual Meeting of Shareholders to be held May 1, 2026.
   
Amendment Flag false    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Entity Central Index Key 0000109380    
Common Stock, par value $0.001      
Document Information [Line Items]      
Title of 12(b) Security Common Stock, par value $0.001    
Trading Symbol ZION    
Security Exchange Name NASDAQ    
Series A Floating-Rate Non-Cumulative Perpetual Preferred Stock      
Document Information [Line Items]      
Title of 12(b) Security Series A Floating-Rate Non-Cumulative Perpetual Preferred Stock    
Trading Symbol ZIONP    
Security Exchange Name NASDAQ