v3.26.3
Shareholder Report, Line Graph (Details) 74200175500_Franklin Retirement Advantage Plus 2060 Fund_Class C_TSR Annual {Class C} - USD ($)
12 Months Ended
Jul. 31, 2025
Jul. 31, 2024
Jul. 31, 2023
Jul. 31, 2022
Jul. 31, 2021
Jul. 31, 2020
Jul. 31, 2019
Jul. 31, 2018
Jul. 31, 2017
Jul. 31, 2016
Jul. 31, 2026
Class C                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     Class C (with sales charge)
Accumulated Value $ 21,896 $ 20,412 $ 16,880 $ 15,281 $ 17,004 $ 13,254 $ 12,616 $ 12,622 $ 11,432 $ 10,000 $ 24,595
Russell 3000 Index [Member]                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     Russell 3000 Index
Accumulated Value 32,551 28,138 23,240 20,631 22,268 16,052 14,470 13,517 11,614 10,000 $ 38,932
Bloomberg U.S. Aggregate Index [Member]                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     Bloomberg U.S. Aggregate Index
Accumulated Value 11,130 10,766 10,243 10,600 11,664 11,746 10,666 9,869 9,949 10,000 $ 11,431
S&P Target Date To 2060 Index [Member]                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     S&P Target Date To 2060 Index
Accumulated Value $ 24,041 $ 21,396 $ 18,533 $ 16,545 $ 18,137 $ 13,777 $ 13,144 $ 12,751 $ 11,492 $ 10,000 $ 28,930