v3.25.2
Shareholder Report
 6 Months Ended
Jun. 30, 2025
USD ($)
HOLDING
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Columbia Funds Variable Series Trust II
Entity Central Index Key 0001413032
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2025
Variable Portfolio – Partners International Value Fund - Class 1  
Shareholder Report [Line Items]  
Fund Name Variable Portfolio – Partners International Value Fund
Class Name Class 1
No Trading Symbol Flag true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Variable Portfolio – Partners International Value Fund (the Fund) for the period of January 1, 2025 to June 30, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. You can also request more information by contacting us at
1-800-345-6611.
Additional Information Phone Number 1-800-345-6611
Additional Information Website columbiathreadneedleus.com/resources/literature
Expenses [Text Block]
What were the Fund costs for the reporting period?
(Based on a hypothetical $10,000 investment)
Class Cost of a $10,000 investment Cost paid as a percentage of a $10,000 investment
Class 1
$
45		 0.83
%
(a)
(a)
Annualized.
Expenses Paid, Amount $ 45
Expense Ratio, Percent 0.83% [1]
Net Assets $ 1,384,747,685
Holdings Count | HOLDING 156
Investment Company, Portfolio Turnover 8.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
1,384,747,685
Total number of portfolio holdings
 156
Portfolio turnover for the reporting period
 8%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
The tables below show the investment makeup of the Fund represented as a percentage of Fund net assets. Derivatives are excluded from the tables unless otherwise noted. The Fund's portfolio composition is subject to change.
Top Holdings
Samsung Electronics Co., Ltd. 2.0
%
Roche Holding AG, Genusschein Shares 1.8
%
Reckitt Benckiser Group PLC 1.8
%
Rexel SA 1.5
%
ING Groep NV 1.5
%
Daimler Truck Holding AG 1.5
%
BASF SE 1.4
%
ArcelorMittal SA 1.4
%
Teleperformance SE 1.4
%
Amundi SA 1.4
%
Equity Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
Samsung Electronics Co., Ltd. 2.0
%
Roche Holding AG, Genusschein Shares 1.8
%
Reckitt Benckiser Group PLC 1.8
%
Rexel SA 1.5
%
ING Groep NV 1.5
%
Daimler Truck Holding AG 1.5
%
BASF SE 1.4
%
ArcelorMittal SA 1.4
%
Teleperformance SE 1.4
%
Amundi SA 1.4
%
Variable Portfolio – Partners International Value Fund - Class 2  
Shareholder Report [Line Items]  
Fund Name Variable Portfolio – Partners International Value Fund
Class Name Class 2
No Trading Symbol Flag true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Variable Portfolio – Partners International Value Fund (the Fund) for the period of January 1, 2025 to June 30, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. You can also request more information by contacting us at
1-800-345-6611.
Additional Information Phone Number 1-800-345-6611
Additional Information Website columbiathreadneedleus.com/resources/literature
Expenses [Text Block]
What were the Fund costs for the reporting period?
(Based on a hypothetical $10,000 investment)
Class Cost of a $10,000 investment Cost paid as a percentage of a $10,000 investment
Class 2
$
59		 1.08
%
(a)
(a)
Annualized.
Expenses Paid, Amount $ 59
Expense Ratio, Percent 1.08% [1]
Net Assets $ 1,384,747,685
Holdings Count | HOLDING 156
Investment Company, Portfolio Turnover 8.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
1,384,747,685
Total number of portfolio holdings
 156
Portfolio turnover for the reporting period
 8%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
The tables below show the investment makeup of the Fund represented as a percentage of Fund net assets. Derivatives are excluded from the tables unless otherwise noted. The Fund's portfolio composition is subject to change.
Top Holdings
Samsung Electronics Co., Ltd. 2.0
%
Roche Holding AG, Genusschein Shares 1.8
%
Reckitt Benckiser Group PLC 1.8
%
Rexel SA 1.5
%
ING Groep NV 1.5
%
Daimler Truck Holding AG 1.5
%
BASF SE 1.4
%
ArcelorMittal SA 1.4
%
Teleperformance SE 1.4
%
Amundi SA 1.4
%
Equity Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
Samsung Electronics Co., Ltd. 2.0
%
Roche Holding AG, Genusschein Shares 1.8
%
Reckitt Benckiser Group PLC 1.8
%
Rexel SA 1.5
%
ING Groep NV 1.5
%
Daimler Truck Holding AG 1.5
%
BASF SE 1.4
%
ArcelorMittal SA 1.4
%
Teleperformance SE 1.4
%
Amundi SA 1.4
%
[1] Annualized.