v3.26.3
Investor A C Institutional And Class R [Member] Investment Objectives and Goals - Investor A, C, Institutional and Class R - BlackRock Advantage Large Cap Core Fund
May 31, 2026
Prospectus [Line Items]  
Risk/Return [Heading] Fund Overview Key Facts About BlackRock Advantage Large Cap Core Fund
Objective [Heading] Investment Objective
Objective, Primary [Text Block]
The investment objective of BlackRock Advantage Large Cap Core Fund (the “Fund”), a series of BlackRock Large Cap Series Funds, Inc. (the “Corporation”), is to seek long-term capital growth. In other words, the Fund tries to choose investments that will increase in value.