| Document and Entity Information | Jan. 29, 2024 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001855781 |
| Document Type | 8-K |
| Document Period End Date | Jan. 29, 2024 |
| Entity Registrant Name | Invesco Galaxy Bitcoin ETF |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 333-255175 |
| Entity Tax Identification Number | 88-6155978 |
| Entity Address, Address Line One | 3500 Lacey Road |
| Entity Address, Address Line Two | Suite 700 |
| Entity Address, City or Town | Downers Grove |
| Entity Address, State or Province | IL |
| Entity Address, Postal Zip Code | 60505 |
| City Area Code | 800 |
| Local Phone Number | 983-0903 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Shares of Beneficial Interest |
| Trading Symbol | BTCO |
| Security Exchange Name | CboeBZX |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | true |
