S000017011 [Member] Annual Fund Operating Expenses - Franklin Multi-Asset Variable Growth |
Dec. 31, 2025 |
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|---|---|---|---|---|---|---|
| Class I | ||||||
| Prospectus [Line Items] | ||||||
| Management Fees (as a percentage of Assets) | 0.00% | |||||
| Distribution and Service (12b-1) Fees | 0.00% | |||||
| Other Expenses (as a percentage of Assets): | 0.14% | |||||
| Acquired Fund Fees and Expenses | 0.64% | |||||
| Expenses (as a percentage of Assets) | 0.78% | [1] | ||||
| Class II | ||||||
| Prospectus [Line Items] | ||||||
| Management Fees (as a percentage of Assets) | 0.00% | |||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||
| Other Expenses (as a percentage of Assets): | 0.14% | [2] | ||||
| Acquired Fund Fees and Expenses | 0.64% | |||||
| Expenses (as a percentage of Assets) | 1.03% | [1] | ||||
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