v3.26.1
Shareholder Report, Average Annual Return (Details)
 12 Months Ended 60 Months Ended 65 Months Ended 108 Months Ended 110 Months Ended 120 Months Ended
Mar. 31, 2026
Mar. 31, 2026
Mar. 31, 2026
Mar. 31, 2026
Mar. 31, 2026
 [3]
Mar. 31, 2026
EUPAC Fund™ - Class A            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class A (with sales charge)          
Average Annual Return, Percent [1] 14.87% 2.48%       7.37%
EUPAC Fund™ - Class C            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class C (with sales charge)          
Average Annual Return, Percent [1] 19.96% 2.93%       7.36%
EUPAC Fund™ - Class T            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class T (with sales charge)          
Average Annual Return, Percent [1] 19.14% 3.44%   7.51% [2]    
EUPAC Fund™ - Class F-1            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class F-1          
Average Annual Return, Percent [1] 21.84% 3.67%       7.98%
EUPAC Fund™ - Class F-2            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class F-2          
Average Annual Return, Percent [1] 22.16% 3.96%       8.28%
EUPAC Fund™ - Class F-3            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class F-3          
Average Annual Return, Percent [1] 22.30% 4.08%     8.18%  
EUPAC Fund™ - Class 529-A            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class 529-A (with sales charge)          
Average Annual Return, Percent [1] 17.56% 2.94%       7.59%
EUPAC Fund™ - Class 529-C            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class 529-C (with sales charge)          
Average Annual Return, Percent [1] 19.90% 2.89%       7.56%
EUPAC Fund™ - Class 529-E            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class 529-E          
Average Annual Return, Percent [1] 21.54% 3.44%       7.73%
EUPAC Fund™ - Class 529-T            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class 529-T (with sales charge)          
Average Annual Return, Percent [1] 19.08% 3.39%   7.45% [4]    
EUPAC Fund™ - Class 529-F-1            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class 529-F-1          
Average Annual Return, Percent [1] 22.08% 3.86%       8.19%
EUPAC Fund™ - Class 529-F-2            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class 529-F-2          
Average Annual Return, Percent [1] 22.16% 3.95% 7.28% [5]      
EUPAC Fund™ - Class 529-F-3            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class 529-F-3          
Average Annual Return, Percent [1] 22.25% 4.02% 7.34% [6]      
EUPAC Fund™ - Class R-1            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class R-1          
Average Annual Return, Percent [1] 20.98% 2.94%       7.21%
EUPAC Fund™ - Class R-2            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class R-2          
Average Annual Return, Percent [1] 20.98% 2.96%       7.22%
EUPAC Fund™ - Class R-2E            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class R-2E          
Average Annual Return, Percent [1] 21.34% 3.24%       7.53%
EUPAC Fund™ - Class R-3            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class R-3          
Average Annual Return, Percent [1] 21.53% 3.41%       7.70%
EUPAC Fund™ - Class R-4            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class R-4          
Average Annual Return, Percent [1] 21.88% 3.72%       8.02%
EUPAC Fund™ - Class R-5E            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class R-5E          
Average Annual Return, Percent [1] 22.14% 3.92%       8.23%
EUPAC Fund™ - Class R-5            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class R-5          
Average Annual Return, Percent [1] 22.24% 4.03%       8.35%
EUPAC Fund™ - Class R-6            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class R-6          
Average Annual Return, Percent [1] 22.30% 4.08%       8.40%
Without Sales Load [Member] | EUPAC Fund™ - Class A            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class A (without sales charge)          
Average Annual Return, Percent [1] 21.87% 3.70%       8.01%
Without Sales Load [Member] | EUPAC Fund™ - Class C            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class C (without sales charge)          
Average Annual Return, Percent [1] 20.96% 2.93%       7.36%
Without Sales Load [Member] | EUPAC Fund™ - Class T            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class T (without sales charge)          
Average Annual Return, Percent [1] 22.18% 3.97%   7.81% [2]    
Without Sales Load [Member] | EUPAC Fund™ - Class 529-A            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class 529-A (without sales charge)          
Average Annual Return, Percent [1] 21.83% 3.67%       7.97%
Without Sales Load [Member] | EUPAC Fund™ - Class 529-C            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class 529-C (without sales charge)          
Average Annual Return, Percent [1] 20.90% 2.89%       7.56%
Without Sales Load [Member] | EUPAC Fund™ - Class 529-T            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name EUPAC Fund — Class 529-T (without sales charge)          
Average Annual Return, Percent [1] 22.12% 3.91%   7.75% [4]    
MSCI ACWI (All Country World Index) ex USA [Member]            
Average Annual Return [Line Items]            
Line Graph and Table Measure Name MSCI ACWI (All Country World Index) ex USA          
Average Annual Return, Percent [7] 24.91% 7.02% 10.73% [5],[6] 7.92% [2],[4] 8.12% 8.38%
[1] Investment results assume all distributions are reinvested and reflect applicable fees and expenses. When applicable, results reflect fee waivers and/or expense reimbursements, without which they would have been lower.
[2] Class T shares were first offered on April 7, 2017.
[3] Class F-3 shares were first offered on January 27, 2017.
[4] Class 529-T shares were first offered on April 7, 2017.
[5] Class 529-F-2 shares were first offered on October 30, 2020.
[6] Class 529-F-3 shares were first offered on October 30, 2020.
[7] Results assume all distributions are reinvested. Any market index shown is unmanaged, and therefore, has no expenses. Investors cannot invest directly in an index. Source(s): MSCI.