v3.26.1
Annual Total Returns - Class R6
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
Nuveen Inflation Linked Bond Fund                    
Prospectus [Line Items]                    
Annual Return [Percent] 7.08% 3.28% 4.36% (7.20%) 5.27% 8.09% 6.59% (0.49%) 1.74% 3.65%
Nuveen Real Estate Securities Select Fund                    
Prospectus [Line Items]                    
Annual Return [Percent] 2.09% 5.31% 12.19% (28.73%) 39.41% 1.33% 31.09% (4.04%) 12.29% 4.38%
Nuveen Emerging Markets Debt Fund                    
Prospectus [Line Items]                    
Annual Return [Percent] 13.83% 8.60% 12.56% (14.40%) (0.86%) 6.12% 17.48% (5.97%) 14.01% 14.05%
Nuveen International Bond Fund                    
Prospectus [Line Items]                    
Annual Return [Percent] 4.24% 4.60% 9.06% (11.37%) (2.19%) 4.81% 9.96% 0.39% 5.55%