v3.26.3
Cover - shares
 9 Months Ended
Sep. 30, 2026
Nov. 11, 2026
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2026  
Document Transition Report false  
Entity File Number 001-41164  
Entity Registrant Name AleAnna, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 98-1582153  
Entity Address, Address Line One 300 Crescent Court  
Entity Address, Address Line Two Suite 1860  
Entity Address, City or Town Dallas  
Entity Address, State or Province TX  
Entity Address, Postal Zip Code 75201  
City Area Code (469)  
Local Phone Number 398-2200  
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  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2026  
Current Fiscal Year End Date --12-31  
Entity Central Index Key 0001845123  
Amendment Flag false  
Class A Common Stock    
Document Information [Line Items]    
Title of 12(b) Security Class A common stock, par value $0.0001 per share  
Trading Symbol ANNA  
Security Exchange Name NASDAQ  
Entity Common Stock, Shares Outstanding   41,157,347
Warrant    
Document Information [Line Items]    
Title of 12(b) Security Warrants, each whole warrant exercisable for one share of Class A common stock  
Trading Symbol ANNAW  
Security Exchange Name NASDAQ  
Class C Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   25,994,400