S000019860 [Member] Investment Strategy - Columbia Variable Portfolio - Corporate Bond Fund	Dec. 31, 2025
Prospectus [Line Items]
Strategy [Heading]	Principal Investment Strategies
Strategy Narrative [Text Block]	Under normal circumstances, the Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in corporate bonds. Corporate bonds are debt instruments or securities issued by corporations or other non-government entities. The Fund expects to invest primarily in investment grade securities. The Fund may invest up to 15% of its total assets in debt instruments that, at the time of purchase, are rated below investment grade or are unrated but determined to be of comparable quality (commonly referred to as “high-yield” investments or “junk” bonds). Under normal circumstances, the Fund’s average effective duration will be between three and ten years. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis. The Fund may invest in privately placed and other securities or instruments that are purchased and sold pursuant to Rule 144A or other exemptions under the Securities Act of 1933, as amended, subject to certain regulatory restrictions. The Fund may invest in U.S. Government obligations, asset-backed securities and mortgage-backed securities. The Fund may at times emphasize one or more sectors in selecting its investments, including the financials sector.

S000019860 [Member] Investment Strategy - Columbia Variable Portfolio - Corporate Bond Fund

Dec. 31, 2025

Principal Investment Strategies

Under normal circumstances, the Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in corporate bonds. Corporate bonds are debt instruments or securities issued by corporations or other non-government entities. The Fund expects to invest primarily in investment grade securities. The Fund may invest up to 15% of its total assets in debt instruments that, at the time of purchase, are rated below investment grade or are unrated but determined to be of comparable quality (commonly referred to as “high-yield” investments or “junk” bonds). Under normal circumstances, the Fund’s average effective duration will be between three and ten years.

The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis.

The Fund may invest in privately placed and other securities or instruments that are purchased and sold pursuant to Rule 144A or other exemptions under the Securities Act of 1933, as amended, subject to certain regulatory restrictions.

The Fund may invest in U.S. Government obligations, asset-backed securities and mortgage-backed securities. The Fund may at times emphasize one or more sectors in selecting its investments, including the financials sector.