v3.26.1
S000016655 [Member] Expense Example - Franklin Multi-Asset Growth Fund
Jan. 31, 2026
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 649
Expense Example, with Redemption, 3 Years 859
Expense Example, with Redemption, 5 Years 1,087
Expense Example, with Redemption, 10 Years 1,740
Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 277
Expense Example, with Redemption, 3 Years 549
Expense Example, with Redemption, 5 Years 945
Expense Example, with Redemption, 10 Years 1,865
Class I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 81
Expense Example, with Redemption, 3 Years 253
Expense Example, with Redemption, 5 Years 439
Expense Example, with Redemption, 10 Years 978
Class R  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 133
Expense Example, with Redemption, 3 Years 414
Expense Example, with Redemption, 5 Years 717
Expense Example, with Redemption, 10 Years 1,578
Class IS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 69
Expense Example, with Redemption, 3 Years 217
Expense Example, with Redemption, 5 Years 378
Expense Example, with Redemption, 10 Years $ 846