| Cover | Sep. 05, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Sep. 05, 2023 |
| Entity Registrant Name | Federal Home Loan Bank of Cincinnati |
| Entity Incorporation, State or Country Code | X1 |
| Entity File Number | 000-51399 |
| Entity Tax Identification Number | 31-6000228 |
| Entity Address, Address Line One | 600 Atrium Two, P.O. Box 598 |
| Entity Address, City or Town | Cincinnati |
| Entity Address, State or Province | OH |
| Entity Address, Postal Zip Code | 45201-0598 |
| City Area Code | 513 |
| Local Phone Number | 852-7500 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001326771 |
