Columbia Funds Variable Series Trust II N-CSRS5 Sep 24Certified semi-annual shareholder report (management investment company)Financial data

Company Profile

Form N-CSR Cover

Form N-CSR Cover	6 Months Ended
Form N-CSR Cover	Jun. 30, 2024
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, 2024

Shareholder Report

Shareholder Report	6 Months Ended
Shareholder Report	Jun. 30, 2024 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, 2024
Variable Portfolio – Partners International Growth Fund Class 1
Shareholder Report [Line Items]
Fund Name	Variable Portfolio – Partners International Growth Fund
Class Name	Class 1
No Trading Symbol Flag	true
Annual or Semi-Annual Statement [Text Block]	This semiannual shareholder report
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 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 Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class 1 $ 0.85 %
Expenses Paid, Amount	$ 43
Expense Ratio, Percent	0.85%
Net Assets	$ 1,367,730,279
Holdings Count \| Holding	103
Investment Company, Portfolio Turnover	16%
Additional Fund Statistics [Text Block]	Key Fund Statistics Fund net assets $ Total number of portfolio holdings 103 Portfolio turnover for the reporting period 16%
Holdings [Text Block]	Graphical Representation of Fund The tables below show the investment makeup of the Fund represented as a percentage of Fund net excluded Top Holdings Novo Nordisk A/S 3.9% ASML Holding NV 3.7% Taiwan Semiconductor Manufacturing Co., Ltd. 3.5% Industria de Diseno Textil SA 2.1% Hoya Corp. 2.0% Experian PLC 1.9% Compass Group PLC 1.9% Tokyo Electron Ltd. 1.8% MediaTek, Inc. 1.7% SAP SE 1.7% Equity Sector Allocation Geographic Allocation
Largest Holdings [Text Block]	Top Holdings Novo Nordisk A/S 3.9% ASML Holding NV 3.7% Taiwan Semiconductor Manufacturing Co., Ltd. 3.5% Industria de Diseno Textil SA 2.1% Hoya Corp. 2.0% Experian PLC 1.9% Compass Group PLC 1.9% Tokyo Electron Ltd. 1.8% MediaTek, Inc. 1.7% SAP SE 1.7%
Variable Portfolio - Partners International Growth Fund Class 2
Shareholder Report [Line Items]
Fund Name	Variable Portfolio – Partners International Growth Fund
Class Name	Class 2
No Trading Symbol Flag	true
Annual or Semi-Annual Statement [Text Block]	This semiannual shareholder report
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 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 Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class 2 $ 1.10 %
Expenses Paid, Amount	$ 56
Expense Ratio, Percent	1.10%
Net Assets	$ 1,367,730,279
Holdings Count \| Holding	103
Investment Company, Portfolio Turnover	16%
Additional Fund Statistics [Text Block]	Key Fund Statistics Fund net assets $ Total number of portfolio holdings 103 Portfolio turnover for the reporting period 16%
Holdings [Text Block]	Graphical Representation of Fund The tables below show the investment makeup of the Fund represented as a percentage of Fund net excluded Top Holdings Novo Nordisk A/S 3.9% ASML Holding NV 3.7% Taiwan Semiconductor Manufacturing Co., Ltd. 3.5% Industria de Diseno Textil SA 2.1% Hoya Corp. 2.0% Experian PLC 1.9% Compass Group PLC 1.9% Tokyo Electron Ltd. 1.8% MediaTek, Inc. 1.7% SAP SE 1.7% Equity Sector Allocation Geographic Allocation
Largest Holdings [Text Block]	Top Holdings Novo Nordisk A/S 3.9% ASML Holding NV 3.7% Taiwan Semiconductor Manufacturing Co., Ltd. 3.5% Industria de Diseno Textil SA 2.1% Hoya Corp. 2.0% Experian PLC 1.9% Compass Group PLC 1.9% Tokyo Electron Ltd. 1.8% MediaTek, Inc. 1.7% SAP SE 1.7%

Shareholder Report, Holdings (D

Shareholder Report, Holdings (Details)	Jun. 30, 2024
Variable Portfolio - Partners International Growth Fund Class 2 \| Novo Nordisk A/S [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Variable Portfolio - Partners International Growth Fund Class 2 \| ASML Holding NV [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Variable Portfolio - Partners International Growth Fund Class 2 \| Taiwan Semiconductor Manufacturing Co., Ltd. [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Variable Portfolio - Partners International Growth Fund Class 2 \| Industria de Diseno Textil SA [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Variable Portfolio - Partners International Growth Fund Class 2 \| Hoya Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Variable Portfolio - Partners International Growth Fund Class 2 \| Experian PLC [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Variable Portfolio - Partners International Growth Fund Class 2 \| Compass Group PLC [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Variable Portfolio - Partners International Growth Fund Class 2 \| Tokyo Electron Ltd. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Variable Portfolio - Partners International Growth Fund Class 2 \| MediaTek, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Variable Portfolio - Partners International Growth Fund Class 2 \| SAP SE [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Variable Portfolio - Partners International Growth Fund Class 2 \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	25.80%
Variable Portfolio - Partners International Growth Fund Class 2 \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	20.20%
Variable Portfolio - Partners International Growth Fund Class 2 \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	16.10%
Variable Portfolio - Partners International Growth Fund Class 2 \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.50%
Variable Portfolio - Partners International Growth Fund Class 2 \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	9.20%
Variable Portfolio - Partners International Growth Fund Class 2 \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Variable Portfolio - Partners International Growth Fund Class 2 \| Materials Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Variable Portfolio - Partners International Growth Fund Class 2 \| Energy Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Variable Portfolio - Partners International Growth Fund Class 2 \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Variable Portfolio - Partners International Growth Fund Class 2 \| Other [Member]
Holdings [Line Items]
Percent of Net Asset Value	21.90%
Variable Portfolio - Partners International Growth Fund Class 2 \| JAPAN
Holdings [Line Items]
Percent of Net Asset Value	15.80%
Variable Portfolio - Partners International Growth Fund Class 2 \| FRANCE
Holdings [Line Items]
Percent of Net Asset Value	12.50%
Variable Portfolio - Partners International Growth Fund Class 2 \| UNITED KINGDOM
Holdings [Line Items]
Percent of Net Asset Value	11.20%
Variable Portfolio - Partners International Growth Fund Class 2 \| SWITZERLAND
Holdings [Line Items]
Percent of Net Asset Value	6.70%
Variable Portfolio - Partners International Growth Fund Class 2 \| TAIWAN
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Variable Portfolio - Partners International Growth Fund Class 2 \| CANADA
Holdings [Line Items]
Percent of Net Asset Value	6%
Variable Portfolio - Partners International Growth Fund Class 2 \| DENMARK
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Variable Portfolio - Partners International Growth Fund Class 2 \| NETHERLANDS
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Variable Portfolio - Partners International Growth Fund Class 2 \| UNITED STATES
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Variable Portfolio - Partners International Growth Fund Class 2 \| GERMANY
Holdings [Line Items]
Percent of Net Asset Value	4.10%
Variable Portfolio – Partners International Growth Fund Class 1 \| Novo Nordisk A/S [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Variable Portfolio – Partners International Growth Fund Class 1 \| ASML Holding NV [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Variable Portfolio – Partners International Growth Fund Class 1 \| Taiwan Semiconductor Manufacturing Co., Ltd. [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Variable Portfolio – Partners International Growth Fund Class 1 \| Industria de Diseno Textil SA [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Variable Portfolio – Partners International Growth Fund Class 1 \| Hoya Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Variable Portfolio – Partners International Growth Fund Class 1 \| Experian PLC [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Variable Portfolio – Partners International Growth Fund Class 1 \| Compass Group PLC [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Variable Portfolio – Partners International Growth Fund Class 1 \| Tokyo Electron Ltd. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Variable Portfolio – Partners International Growth Fund Class 1 \| MediaTek, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Variable Portfolio – Partners International Growth Fund Class 1 \| SAP SE [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Variable Portfolio – Partners International Growth Fund Class 1 \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	25.80%
Variable Portfolio – Partners International Growth Fund Class 1 \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	20.20%
Variable Portfolio – Partners International Growth Fund Class 1 \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	16.10%
Variable Portfolio – Partners International Growth Fund Class 1 \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.50%
Variable Portfolio – Partners International Growth Fund Class 1 \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	9.20%
Variable Portfolio – Partners International Growth Fund Class 1 \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Variable Portfolio – Partners International Growth Fund Class 1 \| Materials Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Variable Portfolio – Partners International Growth Fund Class 1 \| Energy Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Variable Portfolio – Partners International Growth Fund Class 1 \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Variable Portfolio – Partners International Growth Fund Class 1 \| Other [Member]
Holdings [Line Items]
Percent of Net Asset Value	21.90%
Variable Portfolio – Partners International Growth Fund Class 1 \| JAPAN
Holdings [Line Items]
Percent of Net Asset Value	15.80%
Variable Portfolio – Partners International Growth Fund Class 1 \| FRANCE
Holdings [Line Items]
Percent of Net Asset Value	12.50%
Variable Portfolio – Partners International Growth Fund Class 1 \| UNITED KINGDOM
Holdings [Line Items]
Percent of Net Asset Value	11.20%
Variable Portfolio – Partners International Growth Fund Class 1 \| SWITZERLAND
Holdings [Line Items]
Percent of Net Asset Value	6.70%
Variable Portfolio – Partners International Growth Fund Class 1 \| TAIWAN
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Variable Portfolio – Partners International Growth Fund Class 1 \| CANADA
Holdings [Line Items]
Percent of Net Asset Value	6%
Variable Portfolio – Partners International Growth Fund Class 1 \| DENMARK
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Variable Portfolio – Partners International Growth Fund Class 1 \| NETHERLANDS
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Variable Portfolio – Partners International Growth Fund Class 1 \| UNITED STATES
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Variable Portfolio – Partners International Growth Fund Class 1 \| GERMANY
Holdings [Line Items]
Percent of Net Asset Value	4.10%