| Cover | Oct. 29, 2024 |
| Entity Information [Line Items] | |
| Amendment Flag | false |
| Document Type | 8-K |
| Document Period End Date | Oct. 29, 2024 |
| Entity Registrant Name | Federal Home Loan Bank of Dallas |
| Entity Central Index Key | 0001331757 |
| Entity File Number | 000-51405 |
| Entity Tax Identification Number | 71-6013989 |
| 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Incorporation, State or Country Code | X1 |
