S000002884 [Member] Investment Objectives and Goals - BlackRock Government Money Market V.I. Fund |
Dec. 31, 2025 |
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| Prospectus [Line Items] | |
| Risk/Return [Heading] | Fund Overview Key Facts About BlackRock Government Money Market V.I. Fund |
| Objective [Heading] | Investment Objective |
| Objective, Primary [Text Block] | The investment objective of BlackRock Government Money Market V.I. Fund (the “Fund”) is to seek to preserve capital, maintain liquidity and achieve the highest possible current income consistent with the foregoing.
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