Investor A C Institutional and Class R [Member] Investment Objectives and Goals - Investor A, C, Institutional and Class R - BLACKROCK ADVANTAGE LARGE CAP GROWTH FUND

May 31, 2025

Prospectus [Line Items]

Risk/Return [Heading]

Fund OverviewKey Facts About BlackRock Advantage Large Cap Growth Fund

Objective [Heading]

Investment Objective

Objective, Primary [Text Block]

The investment objective of BlackRock Advantage Large Cap Growth Fund (the “Fund”), a series of BlackRock FundsSM (the “Trust”), is to seek long-term capital appreciation.