| Document and Entity Information | Oct. 03, 2024 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001930054 |
| Document Type | 8-K |
| Document Period End Date | Oct. 03, 2024 |
| Entity Registrant Name | Blackstone Private Equity Strategies Fund L.P. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 000-56446 |
| Entity Tax Identification Number | 88-1872156 |
| Entity Address, Address Line One | 345 Park Avenue |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10154 |
| City Area Code | (212) |
| Local Phone Number | 583-5000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
