S000062376 [Member] Expense Example - BlackRock High Yield V.I. Fund |
Dec. 31, 2025
USD ($)
|
|---|---|
| Class I | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 55 |
| Expense Example, with Redemption, 3 Years | 197 |
| Expense Example, with Redemption, 5 Years | 351 |
| Expense Example, with Redemption, 10 Years | 800 |
| Class III | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 80 |
| Expense Example, with Redemption, 3 Years | 273 |
| Expense Example, with Redemption, 5 Years | 482 |
| Expense Example, with Redemption, 10 Years | $ 1,086 |