v3.26.3
Annual Total Returns
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
UBS Emerging Markets Equity Opportunity Fund (Class A, Class P) | CLASS P                    
Prospectus [Line Items]                    
Annual Return [Percent] 42.69% 1.75% 8.17% (26.00%) (9.98%) 23.80%        
UBS GLOBAL ALLOCATION FUND | CLASS P                    
Prospectus [Line Items]                    
Annual Return [Percent] 19.03% 8.56% 9.68% (16.80%) 8.23% 13.84% 19.03% (7.56%) 17.09% 1.57%
UBS International Sustainable Aware Equity Fund (Class A, Class P) | CLASS P                    
Prospectus [Line Items]                    
Annual Return [Percent] 29.10% 6.62% 15.39% (14.10%) 3.34% 12.96% 22.61% (16.71%) 31.21% (0.80%)
UBS Multi Income Bond Fund (Class A, Class P) | Class P                    
Prospectus [Line Items]                    
Annual Return [Percent] 7.07% 1.68% 6.67% (11.74%) (1.49%) 6.51% 10.62% (2.08%) 4.80% 2.68%
UBS Sustainable Development Bank Bond Fund (Class A, Class P) | Class P                    
Prospectus [Line Items]                    
Annual Return [Percent] 7.24% 1.55% 4.52% (10.41%) (2.43%) 6.80% 6.80%      
UBS US Dividend Ruler Fund (Class P) | Class P                    
Prospectus [Line Items]                    
Annual Return [Percent] 16.63% 21.00% 13.56% (6.93%) 23.30%          
UBS US Quality Growth At Reasonable Price Fund | Class P                    
Prospectus [Line Items]                    
Annual Return [Percent] 15.63% 25.15% 35.51% (25.56%) 29.19%          
UBS Emerging Markets Equity Opportunity Fund - Class P2 Prospectus | CLASS P2                    
Prospectus [Line Items]                    
Annual Return [Percent] 43.81% 2.52% 8.93% (25.39%) (9.18%) 24.81% 26.47%      
UBS International Sustainable Aware Equity Fund - Class P2 Prospectus | Class P2                    
Prospectus [Line Items]                    
Annual Return [Percent] 30.19% 7.40% 16.21% (13.43%) 4.14%          
UBS US Dividend Ruler Fund - Class P2 Prospectus | Class P2                    
Prospectus [Line Items]                    
Annual Return [Percent] 17.09% 21.48%                
UBS Multi Income Bond Fund - Class P2 Prospectus | Class P2                    
Prospectus [Line Items]                    
Annual Return [Percent] 7.64% 2.11%                
UBS Sustainable Development Bank Bond Fund - Class P2 Prospectus | Class P2                    
Prospectus [Line Items]                    
Annual Return [Percent] 7.30% 1.71% 4.68% (10.27%) (2.37%)