Class K [Member] Investment Objectives and Goals - Class K - BlackRock Strategic Municipal Opportunities Fund |
May 31, 2025 |
|---|---|
| Prospectus [Line Items] | |
| Risk/Return [Heading] | Fund OverviewKey Facts About BlackRock Strategic Municipal Opportunities Fund |
| Objective [Heading] | Investment Objective |
| Objective, Primary [Text Block] | The investment objective of the BlackRock Strategic Municipal Opportunities Fund (the “Fund”) is to provide shareholders with a high level of income exempt from Federal income taxes.
|