S000017010 [Member] Investment Objectives and Goals - Franklin Multi-Asset Variable Moderate Growth |
Dec. 31, 2025 |
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| Prospectus [Line Items] | |
| Risk/Return [Heading] | Franklin Multi-Asset Variable Moderate Growth Fund |
| Objective [Heading] | Investment objective |
| Objective, Primary [Text Block] | The fund seeks long-term growth of capital.
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