v3.25.2
Shareholder Report, Holdings (Details)
Jun. 30, 2025
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | U.S. Treasury 08/15/2043 4.375% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | U.S. Treasury 05/15/2047 3.000% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | U.S. Treasury 02/15/2048 3.000% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | U.S. Treasury 05/15/2052 2.875% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | U.S. Treasury 02/15/2036 4.500% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | U.S. Treasury 05/15/2038 4.500% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | U.S. Treasury 02/15/2039 3.500% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | U.S. Treasury 05/15/2041 4.375% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | U.S. Treasury 05/15/2045 5.000% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | JPMorgan Chase & Co. 04/22/2036 5.572% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | AAA rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | AA rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 51.40%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | A rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.40%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | BBB rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 27.10%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | BB rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | Not rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | U.S. Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.60%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | Corporate Bonds & Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.10%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | Money Market Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 1 | Other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | U.S. Treasury 08/15/2043 4.375% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | U.S. Treasury 05/15/2047 3.000% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | U.S. Treasury 02/15/2048 3.000% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | U.S. Treasury 05/15/2052 2.875% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | U.S. Treasury 02/15/2036 4.500% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | U.S. Treasury 05/15/2038 4.500% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | U.S. Treasury 02/15/2039 3.500% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | U.S. Treasury 05/15/2041 4.375% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | U.S. Treasury 05/15/2045 5.000% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | JPMorgan Chase & Co. 04/22/2036 5.572% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | AAA rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | AA rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 51.40%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | A rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.40%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | BBB rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 27.10%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | BB rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | Not rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | U.S. Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.60%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | Corporate Bonds & Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.10%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | Money Market Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
Columbia Variable Portfolio – Long Government/Credit Bond Fund - Class 2 | Other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%