v3.25.4
Cover - USD ($)
12 Months Ended
Dec. 31, 2025
Mar. 13, 2026
Jun. 30, 2025
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Financial Statement Error Correction [Flag] false    
Entity Interactive Data Current Yes    
ICFR Auditor Attestation Flag false    
Amendment Flag false    
Document Period End Date Dec. 31, 2025    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Documents Incorporated by Reference [Text Block]

None.

   
Entity Information [Line Items]      
Entity Registrant Name CO2 Energy Transition Corp.    
Entity Central Index Key 0001956648    
Entity File Number 001-42417    
Entity Tax Identification Number 87-2950691    
Entity Incorporation, State or Country Code DE    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Shell Company true    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity Public Float     $ 70,687,140
Entity Incorporation, Date of Incorporation Sep. 30, 2021    
Entity Contact Personnel [Line Items]      
Entity Address, Address Line One 1334 Brittmoore Rd    
Entity Address, Address Line Two Suite 190    
Entity Address, City or Town Houston    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 77043    
Entity Phone Fax Numbers [Line Items]      
City Area Code (346)    
Local Phone Number 250-5000    
Entity Listings [Line Items]      
Entity Common Stock, Shares Outstanding   9,585,750  
Common Stock      
Entity Listings [Line Items]      
Title of 12(b) Security Common Stock    
Trading Symbol NOEM    
Security Exchange Name NASDAQ    
Warrants      
Entity Listings [Line Items]      
Title of 12(b) Security Warrants    
Trading Symbol NOEMW    
Security Exchange Name NASDAQ    
Rights      
Entity Listings [Line Items]      
Title of 12(b) Security Rights    
Trading Symbol NOEMR    
Security Exchange Name NASDAQ    
Units      
Entity Listings [Line Items]      
Title of 12(b) Security Units    
Trading Symbol NOEMU    
Security Exchange Name NASDAQ