Services [Member] Investment Objectives and Goals - Services - BlackRock Pennsylvania Municipal Bond Fund |
May 31, 2026 |
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| Prospectus [Line Items] | |
| Risk/Return [Heading] | Fund OverviewKey Facts About BlackRock Pennsylvania Municipal Bond Fund |
| Objective [Heading] | Investment Objective |
| Objective, Primary [Text Block] | The investment objective of BlackRock Pennsylvania Municipal Bond Fund (the “Pennsylvania Fund” or the “Fund”) is to provide shareholders with income exempt from Federal income tax and Pennsylvania personal income taxes.
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