Annual Total Returns - BLACKROCK ADVANTAGE INTERNATIONAL FUND (Investor C Shares, Class R Shares, Institutional Shares and Investor A Shares) [BarChart] - Investor A, C, Institutional and Class R - BLACKROCK ADVANTAGE INTERNATIONAL FUND - Investor A Shares	Sep. 28, 2020
Bar Chart Table:
Annual Return 2010	10.60%
Annual Return 2011	(12.43%)
Annual Return 2012	14.53%
Annual Return 2013	29.91%
Annual Return 2014	(4.63%)
Annual Return 2015	0.36%
Annual Return 2016	2.97%
Annual Return 2017	23.77%
Annual Return 2018	(15.27%)
Annual Return 2019	21.37%