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S000028688 [Member] Annual Fund Operating Expenses - CTIVP - Westfield Select Large Cap Growth Fund
Dec. 31, 2025
CTIVP - Westfield Select Large Cap Growth Fund Class 1  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.68%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.69% [1]
CTIVP - Westfield Select Large Cap Growth Fund Class 2  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.68%
Distribution and Service (12b-1) Fees 0.25%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.94% [1]
[1] “Total annual Fund operating expenses” include acquired fund fees and expenses (expenses the Fund incurs indirectly through its investments in other investment companies) and may be higher than the ratio of expenses to average net assets shown in the Financial Highlights section of this prospectus because the ratio of expenses to average net assets does not include acquired fund fees and expenses.