Investor A Institutional [Member] Investment Objectives and Goals - Investor A, Institutional - BlackRock Short Obligations Fund

Jul. 31, 2025

Prospectus [Line Items]

Risk/Return [Heading]

Fund OverviewKey Facts About BlackRock Short Obligations Fund

Objective [Heading]

Investment Objective

Objective, Primary [Text Block]

The investment objective of BlackRock Short Obligations Fund (“Short Obligations Fund” or the “Fund”), a series of BlackRock FundsSM (the “Trust”), is to seek current income consistent with preservation of capital.