v3.26.3
S000037262 [Member] Average Annual Total Returns
 12 Months Ended 15 Months Ended 60 Months Ended 120 Months Ended 135 Months Ended 162 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Blended Benchmark 1 (consisting of 60% MSCI ACWI Index (Net) Hedged to DM Currencies and 40% Bloomberg Global Aggregate Hedged USD Index) (reflects reinvested dividends net of withholding taxes on the MSCI ACWI Index portion of the Blended Benchmark, and for all indexes reflects no deductions for fees, expenses or other taxes)            
Prospectus [Line Items]            
Average Annual Return, Percent 14.09%   7.63% 8.52%    
Blended Benchmark 2 (consisting of 60% MSCI ACWI Index (Net) and 40% Bloomberg Global Aggregate Index) (reflects reinvested dividends net of withholding taxes on the MSCI ACWI Index portion of the Blended Benchmark, and for all indexes reflects no deductions for fees, expenses or other taxes)            
Prospectus [Line Items]            
Average Annual Return, Percent 16.60%   5.79% 7.62%    
MSCI ACWI Index (Net) (reflects reinvested dividends net of withholding taxes but reflects no deductions for fees, expenses or other taxes)            
Prospectus [Line Items]            
Average Annual Return, Percent 22.34%   11.19% 11.72%    
FTSE Three-Month U.S. Treasury Bill Index (reflects no deductions for fees, expenses or taxes)            
Prospectus [Line Items]            
Average Annual Return, Percent 4.40%   3.31% 2.23%    
Bloomberg Global Aggregate Index (reflects no deductions for fees, expenses or taxes)            
Prospectus [Line Items]            
Average Annual Return, Percent 8.17%   (2.15%) 1.26%    
C000147084 [Member]            
Prospectus [Line Items]            
Average Annual Return, Percent 14.42%   4.88% 6.99%    
Performance Inception Date         Oct. 01, 2014  
C000255600 [Member]            
Prospectus [Line Items]            
Average Annual Return, Percent 14.44%   4.64% 6.70%    
Performance Inception Date   Oct. 02, 2024        
C000114818 [Member]            
Prospectus [Line Items]            
Average Annual Return, Percent 7.52%   3.35% 6.04%    
Performance Inception Date           Jun. 19, 2012
C000114818 [Member] | After Taxes on Distributions            
Prospectus [Line Items]            
Average Annual Return, Percent 6.40%   1.11% 4.04%    
Performance Inception Date           Jun. 19, 2012
C000114818 [Member] | After Taxes on Distributions and Sales            
Prospectus [Line Items]            
Average Annual Return, Percent 4.46%   1.67% 3.93%    
Performance Inception Date           Jun. 19, 2012
C000114819 [Member]            
Prospectus [Line Items]            
Average Annual Return, Percent 12.30%   3.81% 5.87%    
Performance Inception Date           Jun. 19, 2012
C000114823 [Member]            
Prospectus [Line Items]            
Average Annual Return, Percent 14.37%   4.86% 6.94%    
Performance Inception Date           Jun. 19, 2012
C000114825 [Member]            
Prospectus [Line Items]            
Average Annual Return, Percent 14.33%   4.85% 6.94%    
Performance Inception Date           Jun. 19, 2012