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      id="t_3_e9a05d57_a924_aaa6_9c32_652a94215193">&lt;div style="line-height:10.0pt;text-align:center;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-weight:bold"&gt;Supplement dated March 19, 2026&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:4pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;to the Prospectus and Summary Prospectus of the following Fund:&lt;/span&gt;&lt;span style="color:#003c78;float:left;font-family:arial;font-size:1pt;line-height:1pt"&gt;&#x2003;&lt;/span&gt;&lt;/div&gt;
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&lt;td style="background-color:#003C78;border-bottom:2pt solid #FFFFFF;padding-bottom:3pt;padding-top:3pt;vertical-align:Bottom;width:176.36pt;"&gt; &lt;div style="line-height:10pt;text-align:left;"&gt; &lt;div style="margin-left:6pt;margin-right:12pt;margin-top:1pt;text-align:center;white-space:nowrap;"&gt;&lt;span style="color:#ffffff;font-family:arial;font-size:8pt;font-weight:bold"&gt;Prospectus and Summary Prospectus Dated&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="height:15pt"&gt; 
&lt;td style="background-color:#D9E5F1;border-bottom:2pt solid #FFFFFF;padding-bottom:3pt;padding-top:3pt;vertical-align:Bottom;width:339.64pt;"&gt; &lt;div style="line-height:10pt;text-align:left;"&gt; &lt;div style="margin-left:6pt;margin-right:6pt;text-align:left;white-space:nowrap;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:8pt;margin-left:0.0pt"&gt;Columbia Funds Variable Series Trust II&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;/td&gt; 
&lt;td style="background-color:#D9E5F1;border-bottom:2pt solid #FFFFFF;padding-bottom:3pt;padding-top:3pt;vertical-align:Bottom;width:176.36pt;"&gt; &lt;div style="line-height:0.5pt;text-align:left;"&gt; &lt;div style="margin-left:6pt;margin-right:12pt;text-align:center;white-space:nowrap;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:8pt;margin-left:-85.18pt"&gt;&#160;&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="height:11pt"&gt; 
&lt;td style="background-color:#D9E5F1;padding-bottom:2pt;padding-top:3pt;vertical-align:Bottom;width:339.64pt;"&gt; &lt;div style="line-height:9pt;text-align:left;"&gt; &lt;div style="margin-left:6pt;margin-right:6pt;text-align:left;white-space:nowrap;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:8pt;margin-left:0.0pt"&gt;&#x2003;Columbia Variable Portfolio &#x2013; Commodity Strategy Fund&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;/td&gt; 
&lt;td style="background-color:#D9E5F1;padding-bottom:2pt;padding-top:3pt;vertical-align:Bottom;width:176.36pt;"&gt; &lt;div style="line-height:9pt;text-align:left;"&gt; &lt;div style="margin-left:6pt;margin-right:12pt;text-align:center;white-space:nowrap;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:8pt;margin-left:0.00pt"&gt;5/1/2025&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;div style="margin-top:12pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;On March 19, 2026, the Fund's Board of Trustees approved certain changes to the Fund's Principal Investment &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;Strategies and Principal Risks.&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:12pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;Effective immediately, the following changes are hereby made to the Fund's Prospectus and Summary Prospectus.&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:12pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;The first paragraph under the subsection &#x201c;&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;Principal Investment Strategies&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;&#x201d; in the Summary Prospectus and in the &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;&#x201c;Summary of the Fund&#x201d; section of the Prospectus is hereby superseded and replaced with the following:&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:4pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;Under normal circumstances, the Fund seeks to maintain substantial economic exposure to the performance of the &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;commodities markets. The Fund invests, directly or indirectly, in a portfolio of commodity-linked investments, such &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;as commodity-linked futures, structured notes and/or swaps, that are designed to provide long and short exposures &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;to the investment return of assets that trade in the commodities markets, without investing directly in physical &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;commodities. A substantial portion of the Fund&#x2019;s net assets will also be invested in a portfolio of fixed income &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;securities rated investment-grade or, if unrated, deemed of comparable quality, which will consist primarily of: (i) U.S. &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;Government securities (including U.S. Government agency securities), corporate debt securities, mortgage-backed &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;securities and/or asset-backed securities; and/or (ii) shares of an affiliated money market fund. In addition to &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;investing in these holdings for their income-producing potential, these holdings will be designated by the Fund, as &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;necessary, to serve as collateral with respect to the Fund&#x2019;s commodity-linked investments.&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:12pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;The third paragraph under the subsection &#x201c;&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;Principal Investment Strategies&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;&#x201d; in the Summary Prospectus and in the &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;&#x201c;Summary of the Fund&#x201d; section of the Prospectus is hereby superseded and replaced with the following:&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:4pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;The Fund may invest in derivatives, including futures contracts (including commodity-linked futures and interest rate &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;futures), options contracts (including options on futures contracts), structured investments (including commodity-linked&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt; structured notes) and swaps (including commodity-linked swaps) to increase, modify, reduce or short &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;commodity market positions or exposures. Actual exposures will vary over time based on factors such as market &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;movements and assessments of market conditions by the Fund's portfolio managers. The Fund may engage in &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;derivative transactions on both U.S. and foreign exchanges or in the "over-the-counter" (OTC) market.&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;line-height:10pt"&gt; &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;The Fund may &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;at times emphasize one or more sectors in selecting its investments, including the agricultural, energy and precious &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;metals sectors.&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:12pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;The information under the subsection &#x201c;&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;Principal Risks&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;&#x201d; in the Summary Prospectus and in the &#x201c;Summary of the Fund&#x201d; &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;section of the Prospectus is hereby revised to include the following:&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:4pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-weight:bold"&gt;Short Positions Risk.&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt; The Fund may establish short positions which introduce more risk to the Fund than long &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;positions (where the Fund owns the instrument or other asset) because the maximum sustainable loss on an &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;instrument or other asset purchased (held long) is limited to the amount paid for the instrument or other asset plus &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;the transaction costs, whereas there is no maximum price of the shorted instrument or other asset when purchased &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;in the open market. Therefore, in theory, short positions have unlimited risk. The Fund&#x2019;s use of short positions in &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;effect &#x201c;leverages&#x201d; the Fund. Leverage potentially exposes the Fund to greater risks of loss due to unanticipated &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;market movements, which may magnify losses and increase the volatility of returns. To the extent the Fund takes a &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;short position in a derivative instrument or other asset, this involves the risk of a potentially unlimited increase in the &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;value of the underlying instrument or other asset. Short positions also involve transaction and other costs that will &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;reduce potential Fund gains and increase potential Fund losses.&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:10pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;The rest of the section remains the same.&lt;/span&gt;&lt;/div&gt;</oef:SupplementToProspectusTextBlock>
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      id="t_4_e3ab21c0_2ed4_d720_2c4c_e29eeb08ad4f">&lt;div style="line-height:10.0pt;text-align:center;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-weight:bold"&gt;Supplement dated March 19, 2026&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:4pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;to the Prospectus and Summary Prospectus of the following Fund:&lt;/span&gt;&lt;span style="color:#003c78;float:left;font-family:arial;font-size:1pt;line-height:1pt"&gt;&#x2003;&lt;/span&gt;&lt;/div&gt;
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&lt;tr style="height:14pt"&gt; 
&lt;td style="background-color:#003C78;border-bottom:2pt solid #FFFFFF;padding-bottom:3pt;padding-top:3pt;vertical-align:Bottom;width:339.64pt;"&gt; &lt;div style="line-height:10pt;text-align:left;"&gt; &lt;div style="margin-left:6pt;margin-right:6pt;margin-top:1pt;text-align:left;white-space:nowrap;"&gt;&lt;span style="color:#ffffff;font-family:arial;font-size:8pt;font-weight:bold;margin-left:0.0pt"&gt;Fund&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;/td&gt; 
&lt;td style="background-color:#003C78;border-bottom:2pt solid #FFFFFF;padding-bottom:3pt;padding-top:3pt;vertical-align:Bottom;width:176.36pt;"&gt; &lt;div style="line-height:10pt;text-align:left;"&gt; &lt;div style="margin-left:6pt;margin-right:12pt;margin-top:1pt;text-align:center;white-space:nowrap;"&gt;&lt;span style="color:#ffffff;font-family:arial;font-size:8pt;font-weight:bold"&gt;Prospectus and Summary Prospectus Dated&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="height:15pt"&gt; 
&lt;td style="background-color:#D9E5F1;border-bottom:2pt solid #FFFFFF;padding-bottom:3pt;padding-top:3pt;vertical-align:Bottom;width:339.64pt;"&gt; &lt;div style="line-height:10pt;text-align:left;"&gt; &lt;div style="margin-left:6pt;margin-right:6pt;text-align:left;white-space:nowrap;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:8pt;margin-left:0.0pt"&gt;Columbia Funds Variable Series Trust II&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;/td&gt; 
&lt;td style="background-color:#D9E5F1;border-bottom:2pt solid #FFFFFF;padding-bottom:3pt;padding-top:3pt;vertical-align:Bottom;width:176.36pt;"&gt; &lt;div style="line-height:0.5pt;text-align:left;"&gt; &lt;div style="margin-left:6pt;margin-right:12pt;text-align:center;white-space:nowrap;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:8pt;margin-left:-85.18pt"&gt;&#160;&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="height:11pt"&gt; 
&lt;td style="background-color:#D9E5F1;padding-bottom:2pt;padding-top:3pt;vertical-align:Bottom;width:339.64pt;"&gt; &lt;div style="line-height:9pt;text-align:left;"&gt; &lt;div style="margin-left:6pt;margin-right:6pt;text-align:left;white-space:nowrap;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:8pt;margin-left:0.0pt"&gt;&#x2003;Columbia Variable Portfolio &#x2013; Commodity Strategy Fund&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;/td&gt; 
&lt;td style="background-color:#D9E5F1;padding-bottom:2pt;padding-top:3pt;vertical-align:Bottom;width:176.36pt;"&gt; &lt;div style="line-height:9pt;text-align:left;"&gt; &lt;div style="margin-left:6pt;margin-right:12pt;text-align:center;white-space:nowrap;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:8pt;margin-left:0.00pt"&gt;5/1/2025&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;div style="margin-top:12pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;On March 19, 2026, the Fund's Board of Trustees approved certain changes to the Fund's Principal Investment &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;Strategies and Principal Risks.&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:12pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;Effective immediately, the following changes are hereby made to the Fund's Prospectus and Summary Prospectus.&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:12pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;The first paragraph under the subsection &#x201c;&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;Principal Investment Strategies&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;&#x201d; in the Summary Prospectus and in the &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;&#x201c;Summary of the Fund&#x201d; section of the Prospectus is hereby superseded and replaced with the following:&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:4pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;Under normal circumstances, the Fund seeks to maintain substantial economic exposure to the performance of the &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;commodities markets. The Fund invests, directly or indirectly, in a portfolio of commodity-linked investments, such &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;as commodity-linked futures, structured notes and/or swaps, that are designed to provide long and short exposures &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;to the investment return of assets that trade in the commodities markets, without investing directly in physical &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;commodities. A substantial portion of the Fund&#x2019;s net assets will also be invested in a portfolio of fixed income &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;securities rated investment-grade or, if unrated, deemed of comparable quality, which will consist primarily of: (i) U.S. &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;Government securities (including U.S. Government agency securities), corporate debt securities, mortgage-backed &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;securities and/or asset-backed securities; and/or (ii) shares of an affiliated money market fund. In addition to &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;investing in these holdings for their income-producing potential, these holdings will be designated by the Fund, as &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;necessary, to serve as collateral with respect to the Fund&#x2019;s commodity-linked investments.&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:12pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;The third paragraph under the subsection &#x201c;&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;Principal Investment Strategies&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;&#x201d; in the Summary Prospectus and in the &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;&#x201c;Summary of the Fund&#x201d; section of the Prospectus is hereby superseded and replaced with the following:&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:4pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;The Fund may invest in derivatives, including futures contracts (including commodity-linked futures and interest rate &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;futures), options contracts (including options on futures contracts), structured investments (including commodity-linked&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt; structured notes) and swaps (including commodity-linked swaps) to increase, modify, reduce or short &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;commodity market positions or exposures. Actual exposures will vary over time based on factors such as market &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;movements and assessments of market conditions by the Fund's portfolio managers. The Fund may engage in &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;derivative transactions on both U.S. and foreign exchanges or in the "over-the-counter" (OTC) market.&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;line-height:10pt"&gt; &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;The Fund may &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;at times emphasize one or more sectors in selecting its investments, including the agricultural, energy and precious &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;metals sectors.&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:12pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;The information under the subsection &#x201c;&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;Principal Risks&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;&#x201d; in the Summary Prospectus and in the &#x201c;Summary of the Fund&#x201d; &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;section of the Prospectus is hereby revised to include the following:&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:4pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-weight:bold"&gt;Short Positions Risk.&lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt; The Fund may establish short positions which introduce more risk to the Fund than long &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;positions (where the Fund owns the instrument or other asset) because the maximum sustainable loss on an &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;instrument or other asset purchased (held long) is limited to the amount paid for the instrument or other asset plus &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;the transaction costs, whereas there is no maximum price of the shorted instrument or other asset when purchased &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;in the open market. Therefore, in theory, short positions have unlimited risk. The Fund&#x2019;s use of short positions in &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;effect &#x201c;leverages&#x201d; the Fund. Leverage potentially exposes the Fund to greater risks of loss due to unanticipated &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;market movements, which may magnify losses and increase the volatility of returns. To the extent the Fund takes a &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;short position in a derivative instrument or other asset, this involves the risk of a potentially unlimited increase in the &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;value of the underlying instrument or other asset. Short positions also involve transaction and other costs that will &lt;/span&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt"&gt;reduce potential Fund gains and increase potential Fund losses.&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:10pt;"&gt;&lt;span style="color:#003c78;font-family:arial;font-size:10pt;font-style:italic"&gt;The rest of the section remains the same.&lt;/span&gt;&lt;/div&gt;</oef:SupplementToProspectusTextBlock>
    <dei:EntityRegistrantName
      contextRef="DefaultContext"
      id="t_1_7bad6e8a_3b5b_7ead_ba39_cc1f7fbab002">Columbia Funds Variable Series Trust II</dei:EntityRegistrantName>
    <oef:ProspectusDate
      contextRef="DefaultContext"
      id="t_2_bc3c5e2f_84eb_7ad0_5529_b1b9956b9f77">2025-05-01</oef:ProspectusDate>
</xbrl>
