v3.26.1
Average Annual Total Returns
 12 Months Ended 53 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Bloomberg U.S. Aggregate Bond Index    
Prospectus [Line Items]    
Average Annual Return, Percent 7.30% (0.23%) [1]
S&P Target Date 2010 Index    
Prospectus [Line Items]    
Average Annual Return, Percent 11.91% 4.03% [2]
Russell 3000® Index    
Prospectus [Line Items]    
Average Annual Return, Percent 17.15% 10.82% [3]
S&P Target Date 2050 Index    
Prospectus [Line Items]    
Average Annual Return, Percent 19.56% 8.53% [4]
S&P Target Date Retirement Income Index    
Prospectus [Line Items]    
Average Annual Return, Percent 11.66% 3.82% [1]
S&P Target Date 2015 Index    
Prospectus [Line Items]    
Average Annual Return, Percent 12.15% 4.24% [5]
S&P Target Date 2020 Index    
Prospectus [Line Items]    
Average Annual Return, Percent 12.72% 4.63% [6]
S&P Target Date 2025 Index    
Prospectus [Line Items]    
Average Annual Return, Percent 13.98% 5.11% [3]
S&P Target Date 2030 Index    
Prospectus [Line Items]    
Average Annual Return, Percent 15.13% 5.92% [7]
S&P Target Date 2035 Index    
Prospectus [Line Items]    
Average Annual Return, Percent 16.80% 6.83% [8]
S&P Target Date 2040 Index    
Prospectus [Line Items]    
Average Annual Return, Percent 18.20% 7.69% [9]
S&P Target Date 2045 Index    
Prospectus [Line Items]    
Average Annual Return, Percent 19.48% 8.28% [10]
S&P Target Date 2055 Index    
Prospectus [Line Items]    
Average Annual Return, Percent 20.06% 8.65% [11]
S&P Target Date 2060 Index    
Prospectus [Line Items]    
Average Annual Return, Percent 19.94% 8.66% [12]
S&P Target Date 2065+ Index    
Prospectus [Line Items]    
Average Annual Return, Percent 20.17% 8.84% [13]
T. Rowe Price Retirement Blend 2005 Fund - Investor Class    
Prospectus [Line Items]    
Average Annual Return, Percent 11.88% 4.22%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2005 Fund - Investor Class | After Taxes on Distributions    
Prospectus [Line Items]    
Average Annual Return, Percent 10.50% 3.10%
T. Rowe Price Retirement Blend 2005 Fund - Investor Class | After Taxes on Distributions and Sales    
Prospectus [Line Items]    
Average Annual Return, Percent 7.22% 2.82%
T. Rowe Price Retirement Blend 2005 Fund - I Class    
Prospectus [Line Items]    
Average Annual Return, Percent 12.07% 4.38%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2010 Fund - Investor Class    
Prospectus [Line Items]    
Average Annual Return, Percent 12.34% 4.42%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2010 Fund - Investor Class | After Taxes on Distributions    
Prospectus [Line Items]    
Average Annual Return, Percent 11.08% 3.27%
T. Rowe Price Retirement Blend 2010 Fund - Investor Class | After Taxes on Distributions and Sales    
Prospectus [Line Items]    
Average Annual Return, Percent 7.50% 2.96%
T. Rowe Price Retirement Blend 2010 Fund - I Class    
Prospectus [Line Items]    
Average Annual Return, Percent 12.58% 4.60%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2015 Fund - Investor Class    
Prospectus [Line Items]    
Average Annual Return, Percent 12.76% 4.60%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2015 Fund - Investor Class | After Taxes on Distributions    
Prospectus [Line Items]    
Average Annual Return, Percent 11.43% 3.46%
T. Rowe Price Retirement Blend 2015 Fund - Investor Class | After Taxes on Distributions and Sales    
Prospectus [Line Items]    
Average Annual Return, Percent 7.74% 3.11%
T. Rowe Price Retirement Blend 2015 Fund - I Class    
Prospectus [Line Items]    
Average Annual Return, Percent 12.90% 4.77%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2020 Fund - Investor Class    
Prospectus [Line Items]    
Average Annual Return, Percent 13.25% 4.83%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2020 Fund - Investor Class | After Taxes on Distributions    
Prospectus [Line Items]    
Average Annual Return, Percent 11.96% 3.75%
T. Rowe Price Retirement Blend 2020 Fund - Investor Class | After Taxes on Distributions and Sales    
Prospectus [Line Items]    
Average Annual Return, Percent 8.06% 3.33%
T. Rowe Price Retirement Blend 2020 Fund - I Class    
Prospectus [Line Items]    
Average Annual Return, Percent 13.28% 4.94%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2025 Fund - Investor Class    
Prospectus [Line Items]    
Average Annual Return, Percent 13.69% 5.07%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2025 Fund - Investor Class | After Taxes on Distributions    
Prospectus [Line Items]    
Average Annual Return, Percent 12.52% 4.07%
T. Rowe Price Retirement Blend 2025 Fund - Investor Class | After Taxes on Distributions and Sales    
Prospectus [Line Items]    
Average Annual Return, Percent 8.33% 3.56%
T. Rowe Price Retirement Blend 2025 Fund - I Class    
Prospectus [Line Items]    
Average Annual Return, Percent 13.86% 5.20%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2030 Fund - Investor Class    
Prospectus [Line Items]    
Average Annual Return, Percent 15.25% 5.72%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2030 Fund - Investor Class | After Taxes on Distributions    
Prospectus [Line Items]    
Average Annual Return, Percent 14.24% 4.89%
T. Rowe Price Retirement Blend 2030 Fund - Investor Class | After Taxes on Distributions and Sales    
Prospectus [Line Items]    
Average Annual Return, Percent 9.28% 4.17%
T. Rowe Price Retirement Blend 2030 Fund - I Class    
Prospectus [Line Items]    
Average Annual Return, Percent 15.48% 5.93%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2035 Fund - Investor Class    
Prospectus [Line Items]    
Average Annual Return, Percent 17.28% 6.87%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2035 Fund - Investor Class | After Taxes on Distributions    
Prospectus [Line Items]    
Average Annual Return, Percent 16.42% 6.18%
T. Rowe Price Retirement Blend 2035 Fund - Investor Class | After Taxes on Distributions and Sales    
Prospectus [Line Items]    
Average Annual Return, Percent 10.54% 5.16%
T. Rowe Price Retirement Blend 2035 Fund - I Class    
Prospectus [Line Items]    
Average Annual Return, Percent 17.38% 7.04%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2040 Fund - Investor Class    
Prospectus [Line Items]    
Average Annual Return, Percent 18.65% 7.40%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2040 Fund - Investor Class | After Taxes on Distributions    
Prospectus [Line Items]    
Average Annual Return, Percent 17.88% 6.74%
T. Rowe Price Retirement Blend 2040 Fund - Investor Class | After Taxes on Distributions and Sales    
Prospectus [Line Items]    
Average Annual Return, Percent 11.40% 5.62%
T. Rowe Price Retirement Blend 2040 Fund - I Class    
Prospectus [Line Items]    
Average Annual Return, Percent 18.79% 7.56%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2045 Fund - Investor Class    
Prospectus [Line Items]    
Average Annual Return, Percent 19.82% 7.96%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2045 Fund - Investor Class | After Taxes on Distributions    
Prospectus [Line Items]    
Average Annual Return, Percent 19.11% 7.34%
T. Rowe Price Retirement Blend 2045 Fund - Investor Class | After Taxes on Distributions and Sales    
Prospectus [Line Items]    
Average Annual Return, Percent 12.13% 6.09%
T. Rowe Price Retirement Blend 2045 Fund - I Class    
Prospectus [Line Items]    
Average Annual Return, Percent 19.96% 8.13%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2050 Fund - Investor Class    
Prospectus [Line Items]    
Average Annual Return, Percent 20.19% 8.16%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2050 Fund - Investor Class | After Taxes on Distributions    
Prospectus [Line Items]    
Average Annual Return, Percent 19.49% 7.57%
T. Rowe Price Retirement Blend 2050 Fund - Investor Class | After Taxes on Distributions and Sales    
Prospectus [Line Items]    
Average Annual Return, Percent 12.35% 6.27%
T. Rowe Price Retirement Blend 2050 Fund - I Class    
Prospectus [Line Items]    
Average Annual Return, Percent 20.33% 8.35%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2055 Fund - Investor Class    
Prospectus [Line Items]    
Average Annual Return, Percent 20.22% 8.15%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2055 Fund - Investor Class | After Taxes on Distributions    
Prospectus [Line Items]    
Average Annual Return, Percent 19.51% 7.57%
T. Rowe Price Retirement Blend 2055 Fund - Investor Class | After Taxes on Distributions and Sales    
Prospectus [Line Items]    
Average Annual Return, Percent 12.38% 6.26%
T. Rowe Price Retirement Blend 2055 Fund - I Class    
Prospectus [Line Items]    
Average Annual Return, Percent 20.54% 8.34%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2060 Fund - Investor Class    
Prospectus [Line Items]    
Average Annual Return, Percent 20.34% 8.15%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2060 Fund - Investor Class | After Taxes on Distributions    
Prospectus [Line Items]    
Average Annual Return, Percent 19.65% 7.55%
T. Rowe Price Retirement Blend 2060 Fund - Investor Class | After Taxes on Distributions and Sales    
Prospectus [Line Items]    
Average Annual Return, Percent 12.44% 6.25%
T. Rowe Price Retirement Blend 2060 Fund - I Class    
Prospectus [Line Items]    
Average Annual Return, Percent 20.52% 8.36%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2065 Fund - Investor Class    
Prospectus [Line Items]    
Average Annual Return, Percent 20.22% 8.14%
Performance Inception Date   Jul. 26, 2021
T. Rowe Price Retirement Blend 2065 Fund - Investor Class | After Taxes on Distributions    
Prospectus [Line Items]    
Average Annual Return, Percent 19.44% 7.55%
T. Rowe Price Retirement Blend 2065 Fund - Investor Class | After Taxes on Distributions and Sales    
Prospectus [Line Items]    
Average Annual Return, Percent 12.43% 6.25%
T. Rowe Price Retirement Blend 2065 Fund - I Class    
Prospectus [Line Items]    
Average Annual Return, Percent 20.51% 8.35%
Performance Inception Date   Jul. 26, 2021
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