Class K [Member] Investment Objectives and Goals - Class K - BlackRock Global Equity Market Neutral Fund |
Apr. 30, 2025 |
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| Prospectus [Line Items] | |
| Risk/Return [Heading] | Fund Overview Key Facts About BlackRock Global Equity Market Neutral Fund |
| Objective [Heading] | Investment Objective |
| Objective, Primary [Text Block] | The investment objective of BlackRock Global Equity Market Neutral Fund (the “Fund”), a series of BlackRock FundsSM (the “Trust”), to seek total return over the long term.
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