v3.26.1
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
T. Rowe Price Target 2005 Fund-Investor Class                    
Prospectus [Line Items]                    
Annual Return [Percent] 10.43% 7.18% 10.48% (12.56%) 7.16% 10.74% 14.71% (3.12%) 9.84% 6.51%
T. Rowe Price Target 2010 Fund-Investor Class                    
Prospectus [Line Items]                    
Annual Return [Percent] 10.45% 7.41% 10.70% (12.73%) 7.41% 10.98% 14.91% (3.14%) 10.25% 6.55%
T. Rowe Price Target 2015 Fund-Investor Class                    
Prospectus [Line Items]                    
Annual Return [Percent] 10.78% 7.53% 10.98% (12.92%) 7.86% 11.44% 15.30% (3.34%) 11.00% 6.57%
T. Rowe Price Target 2020 Fund-Investor Class                    
Prospectus [Line Items]                    
Annual Return [Percent] 11.02% 7.80% 11.39% (13.13%) 8.57% 12.02% 16.48% (3.88%) 12.63% 6.54%
T. Rowe Price Target 2025 Fund-Investor Class                    
Prospectus [Line Items]                    
Annual Return [Percent] 11.41% 8.46% 12.39% (13.91%) 10.13% 13.21% 17.81% (4.48%) 14.34% 6.72%
T. Rowe Price Target 2030 Fund-Investor Class                    
Prospectus [Line Items]                    
Annual Return [Percent] 12.74% 9.47% 14.08% (15.16%) 11.37% 14.17% 19.43% (5.22%) 16.21% 7.09%
T. Rowe Price Target 2035 Fund-Investor Class                    
Prospectus [Line Items]                    
Annual Return [Percent] 14.36% 10.51% 15.92% (16.59%) 12.81% 15.38% 20.94% (5.84%) 17.90% 7.21%
T. Rowe Price Target 2040 Fund-Investor Class                    
Prospectus [Line Items]                    
Annual Return [Percent] 15.72% 11.66% 17.55% (17.85%) 14.00% 16.49% 22.25% (6.42%) 19.42% 7.38%
T. Rowe Price Target 2045 Fund-Investor Class                    
Prospectus [Line Items]                    
Annual Return [Percent] 17.03% 12.73% 18.97% (18.55%) 15.29% 17.45% 23.14% (6.72%) 20.38% 7.51%
T. Rowe Price Target 2050 Fund-Investor Class                    
Prospectus [Line Items]                    
Annual Return [Percent] 18.11% 13.57% 20.08% (19.06%) 16.37% 18.05% 24.11% (7.18%) 21.42% 7.52%
T. Rowe Price Target 2055 Fund-Investor Class                    
Prospectus [Line Items]                    
Annual Return [Percent] 18.62% 14.03% 20.57% (19.16%) 16.96% 18.44% 24.76% (7.38%) 22.04% 7.60%
T. Rowe Price Target 2060 Fund-Investor Class                    
Prospectus [Line Items]                    
Annual Return [Percent] 18.88% 14.30% 20.78% (19.31%) 17.28% 18.59% 25.29% (7.60%) 22.23% 7.67%
T. Rowe Price Target 2065 Fund-Investor Class                    
Prospectus [Line Items]                    
Annual Return [Percent] 18.85% 14.32% 20.86% (19.29%) 18.14%