v3.26.1
Document and Entity Information Document - shares
3 Months Ended
Mar. 31, 2026
May 06, 2026
Entity Information [Line Items]    
Entity Registrant Name FEDERAL HOME LOAN BANK OF DALLAS  
Entity Central Index Key 0001331757  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Document Type 10-Q  
Document Period End Date Mar. 31, 2026  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   32,569,388
Entity Current Reporting Status Yes  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Small Business false  
Entity Address, Address Line One 8500 Freeport Parkway South, Suite 600  
Entity Address, City or Town Irving,  
Entity Address, State or Province TX  
Entity Address, Postal Zip Code 75063-2547  
City Area Code (214)  
Local Phone Number 441-8500  
Entity Tax Identification Number 71-6013989  
Entity File Number 000-51405  
Entity Incorporation, State or Country Code X1  
Document Quarterly Report true  
Document Transition Report false  
Entity Interactive Data Current Yes