S000016933 [Member] Expense Example - ClearBridge Variable Growth Portfolio |
Dec. 31, 2025
USD ($)
|
|---|---|
| Class I | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 89 |
| Expense Example, with Redemption, 3 Years | 277 |
| Expense Example, with Redemption, 5 Years | 481 |
| Expense Example, with Redemption, 10 Years | 1,072 |
| Class II | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 115 |
| Expense Example, with Redemption, 3 Years | 359 |
| Expense Example, with Redemption, 5 Years | 622 |
| Expense Example, with Redemption, 10 Years | $ 1,374 |