S000002880 [Member] Expense Example - BlackRock Equity Dividend V.I. Fund |
Dec. 31, 2025
USD ($)
|
|---|---|
| Class I | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 69 |
| Expense Example, with Redemption, 3 Years | 261 |
| Expense Example, with Redemption, 5 Years | 468 |
| Expense Example, with Redemption, 10 Years | 1,066 |
| Class III | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 95 |
| Expense Example, with Redemption, 3 Years | 339 |
| Expense Example, with Redemption, 5 Years | 603 |
| Expense Example, with Redemption, 10 Years | $ 1,357 |