v3.26.3
Class K [Member] Investment Objectives and Goals - Class K - BLACKROCK BALANCED FUND, INC.
May 31, 2026
Prospectus [Line Items]  
Risk/Return [Heading] Fund Overview Key Facts About BlackRock Balanced Fund, Inc.
Objective [Heading] Investment Objective
Objective, Primary [Text Block]
The investment objective of BlackRock Balanced Fund, Inc. (the Fund) is to seek the highest total investment return through a fully managed investment policy utilizing equity, debt (including money market) and convertible securities.