v3.26.3
Document And Entity Information - shares
 9 Months Ended
Aug. 31, 2026
Oct. 09, 2026
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Aug. 31, 2026  
Document Fiscal Year Focus 2026  
Document Transition Report false  
Entity File Number 001-42643  
Entity Registrant Name COTWO ADVISORSPHYSICAL EUROPEAN CARBON ALLOWANCE TRUST  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 92-6338429  
Amendment Flag false  
Entity Central Index Key 0001958928  
Document Fiscal Period Focus Q3  
Current Fiscal Year End Date --11-30  
Entity Address, Address Line One 140 Elm Street  
Entity Address, Address Line Two Suite 6  
Entity Address, City or Town New Canaan  
Entity Address, State or Province CT  
Entity Address, Postal Zip Code 06840  
City Area Code (866)  
Local Phone Number 990-6442  
Title of 12(b) Security COtwo Advisors Physical European Carbon Allowance Trust  
Trading Symbol CTWO  
Security Exchange Name NYSE  
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  
Entity Common Stock, Shares Outstanding   100,000