v3.25.2
Shareholder Report, Holdings (Details)
Jun. 30, 2024
Emerging Markets Growth Fund - Class M [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.01%
Emerging Markets Growth Fund - Class M [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.67%
Emerging Markets Growth Fund - Class M [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.13%
Emerging Markets Growth Fund - Class M [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.14%
Emerging Markets Growth Fund - Class M [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.51%
Emerging Markets Growth Fund - Class M [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
Emerging Markets Growth Fund - Class M [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.24%
Emerging Markets Growth Fund - Class M [Member] | Unclassified Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.71%
Emerging Markets Growth Fund - Class M [Member] | Other securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.86%
Emerging Markets Growth Fund - Class M [Member] | Short-term securities & other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.63%
Emerging Markets Growth Fund - Class F-3 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.01%
Emerging Markets Growth Fund - Class F-3 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.67%
Emerging Markets Growth Fund - Class F-3 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.13%
Emerging Markets Growth Fund - Class F-3 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.14%
Emerging Markets Growth Fund - Class F-3 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.51%
Emerging Markets Growth Fund - Class F-3 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
Emerging Markets Growth Fund - Class F-3 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.24%
Emerging Markets Growth Fund - Class F-3 [Member] | Unclassified Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.71%
Emerging Markets Growth Fund - Class F-3 [Member] | Other securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.86%
Emerging Markets Growth Fund - Class F-3 [Member] | Short-term securities & other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.63%
Emerging Markets Growth Fund - Class R-6 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.01%
Emerging Markets Growth Fund - Class R-6 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.67%
Emerging Markets Growth Fund - Class R-6 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.13%
Emerging Markets Growth Fund - Class R-6 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.14%
Emerging Markets Growth Fund - Class R-6 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.51%
Emerging Markets Growth Fund - Class R-6 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
Emerging Markets Growth Fund - Class R-6 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.24%
Emerging Markets Growth Fund - Class R-6 [Member] | Unclassified Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.71%
Emerging Markets Growth Fund - Class R-6 [Member] | Other securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.86%
Emerging Markets Growth Fund - Class R-6 [Member] | Short-term securities & other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.63%