v3.26.1
S000068275 [Member] Expense Example, No Redemption - Franklin Templeton Moderately Conservative Model Portfolio
Dec. 31, 2025
USD ($)
Class I  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 58
Expense Example, No Redemption, 3 Years 183
Expense Example, No Redemption, 5 Years 318
Expense Example, No Redemption, 10 Years 713
Class II  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 84
Expense Example, No Redemption, 3 Years 262
Expense Example, No Redemption, 5 Years 456
Expense Example, No Redemption, 10 Years $ 1,015