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Intermediate Bond Fund (Class 2) Columbia Variable Portfolio Large Cap Index Fund Class 2 [Member] Columbia Variable Portfolio - Large Cap Index Fund (Class 2) Columbia Variable Portfolio Large Cap Index Fund Class 3 [Member] Columbia Variable Portfolio - Large Cap Index Fund (Class 3) Columbia Variable Portfolio Long GovernmentCredit Bond Fund Class 2 [Member] Columbia Variable Portfolio - Long Government/Credit Bond Fund (Class 2) Columbia Variable Portfolio Overseas Core Fund Class 2 [Member] Columbia Variable Portfolio - Overseas Core Fund (Class 2) Columbia Variable Portfolio Select Corporate Income Fund Class 2 [Member] Columbia Variable Portfolio - Select Corporate Income Fund (Class 2) Columbia Variable Portfolio Select Large Cap Value Fund Class 2 [Member] Columbia Variable Portfolio - Select Large Cap Value Fund (Class 2) Columbia Variable Portfolio Select Mid Cap Growth Fund Class 2 [Member] Columbia Variable Portfolio - Select Mid Cap Growth Fund (Class 2) Columbia Variable Portfolio Select Mid Cap Value Fund Class 2 [Member] Columbia Variable Portfolio - Select Mid Cap Value Fund (Class 2) Columbia Variable Portfolio Select Short Corporate Income Fund Class 2 [Member] Columbia Variable Portfolio - Select Short Corporate Income Fund (Class 2) Columbia Variable Portfolio Select Small Cap Value Fund Class 2 [Member] Columbia Variable Portfolio - Select Small Cap Value Fund (Class 2) Columbia Variable Portfolio Strategic Income Fund Class 2 [Member] Columbia Variable Portfolio - Strategic Income Fund (Class 2) Columbia Variable Portfolio US Government Mortgage Fund Class 2 [Member] Columbia Variable Portfolio - U.S. Government Mortgage Fund (Class 2) CTIVP BlackRock Global InflationLinked Securities Fund Class 2 [Member] CTIVP® - BlackRock Global Inflation-Linked Securities Fund (Class 2) CTIVP CenterSquare Real Estate Fund Class 2 [Member] CTIVP® - CenterSquare Real Estate Fund (Class 2) CTIVP Fidelity Institutional AM Total Bond Fund Class 2 [Member] CTIVP® - Fidelity Institutional AM® Total Bond Fund (Class 2) CTIVP Principal Large Cap Growth Fund Class 2 [Member] CTIVP® - Principal Large Cap Growth Fund (Class 2) CTIVP T Rowe Price Large Cap Value Fund Class 2 [Member] CTIVP® - T. Rowe Price Large Cap Value Fund (Class 2) CTIVP TCW Total Return Bond Fund Class 2 [Member] CTIVP® - TCW Total Return Bond Fund (Class 2) CTIVP Victory Sycamore Established Value Fund Class 2 [Member] CTIVP® - Victory Sycamore Established Value Fund (Class 2) CTIVP Wellington Large Cap Value Fund Class 2 [Member] CTIVP® - Wellington Large Cap Value Fund (Class 2) CTIVP Westfield Mid Cap Growth Fund (Class 2) [Member] CTIVP® - Westfield Mid Cap Growth Fund (Class 2) CTIVP Westfield Select Large Cap Growth Fund (Class 2) [Member] DWS Alternative Asset Allocation VIP (Class B) [Member] Fidelity VIP Contrafund Portfolio (Service Class 2) [Member] Fidelity VIP Mid Cap Portfolio (Service Class 2) [Member] Fidelity VIP Strategic Income Portfolio (Service Class 2) [Member] Franklin Income VIP Fund (Class 2) [Member] Franklin Mutual Shares VIP Fund (Class 2) [Member] Franklin Small Cap Value VIP Fund (Class 2) [Member] Invesco V.I. BalancedRisk Allocation Fund (Series II Shares) [Member] Invesco V.I. Global Fund (Series II Shares) [Member] Invesco V.I. Global Strategic Income Fund (Series II Shares) [Member] Invesco V.I. 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