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Schedule - Average Annual Total Returns {Transposed} {- Calvert VP Natural Resources Portfolio} link:presentationLink link:calculationLink link:definitionLink 000018 - Document - Risk/Return Detail {Unlabeled} - Calvert VP Natural Resources Portfolio link:presentationLink link:calculationLink link:definitionLink 000019 - Disclosure - Risk/Return Detail Data {Elements} - Calvert VP Natural Resources Portfolio link:presentationLink link:calculationLink link:definitionLink 000021 - Document - Risk/Return Summary {Unlabeled} - Calvert VP Inflation Protected Plus Portfolio link:presentationLink link:calculationLink link:definitionLink 000022 - Schedule - Shareholder Fees {- Calvert VP Inflation Protected Plus Portfolio} link:presentationLink link:calculationLink link:definitionLink 000023 - Schedule - Annual Fund Operating Expenses {- Calvert VP Inflation Protected Plus Portfolio} link:presentationLink link:calculationLink link:definitionLink 000024 - Schedule - Expense Example {Transposed} {- Calvert VP Inflation Protected Plus Portfolio} link:presentationLink link:calculationLink link:definitionLink 000025 - Schedule - Expense Example, No Redemption {Transposed} {- Calvert VP Inflation Protected Plus Portfolio} link:presentationLink link:calculationLink link:definitionLink 000026 - Schedule - Annual Total Returns - Calvert VP Inflation Protected Plus Portfolio [BarChart] link:presentationLink link:calculationLink link:definitionLink 000027 - Schedule - Average Annual Total Returns {Transposed} {- Calvert VP Inflation Protected Plus Portfolio} link:presentationLink link:calculationLink link:definitionLink 000028 - Document - Risk/Return Detail {Unlabeled} - Calvert VP Inflation Protected Plus Portfolio link:presentationLink link:calculationLink link:definitionLink 000029 - Disclosure - Risk/Return Detail Data {Elements} - Calvert VP Inflation Protected Plus Portfolio link:presentationLink link:calculationLink link:definitionLink 000031 - Document - Risk/Return Summary {Unlabeled} - Calvert VP SRI Large Cap Value Portfolio link:presentationLink link:calculationLink link:definitionLink 000032 - 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Schedule - Expense Example {Transposed} {- Calvert VP S&P MidCap 400 Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000055 - Schedule - Expense Example, No Redemption {Transposed} {- Calvert VP S&P MidCap 400 Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000056 - Schedule - Annual Total Returns {- Calvert VP S&P MidCap 400 Index Portfolio [BarChart]} link:presentationLink link:calculationLink link:definitionLink 000057 - Schedule - Average Annual Total Returns {Transposed} {- Calvert VP S&P MidCap 400 Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000058 - Document - Risk/Return Detail {Unlabeled} - Calvert VP S&P MidCap 400 Index Portfolio link:presentationLink link:calculationLink link:definitionLink 000059 - Disclosure - Risk/Return Detail Data {Elements} - Calvert VP S&P MidCap 400 Index Portfolio link:presentationLink link:calculationLink link:definitionLink 000061 - Document - Risk/Return Summary {Unlabeled} - Calvert VP NASDAQ 100 Index Portfolio link:presentationLink link:calculationLink link:definitionLink 000062 - Schedule - Shareholder Fees {- Calvert VP NASDAQ 100 Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000063 - Schedule - Annual Fund Operating Expenses {- Calvert VP NASDAQ 100 Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000064 - Schedule - Expense Example {Transposed} {- Calvert VP NASDAQ 100 Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000065 - Schedule - Expense Example, No Redemption {Transposed} {- Calvert VP NASDAQ 100 Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000066 - Schedule - Annual Total Returns - Calvert VP NASDAQ 100 Index Portfolio [BarChart] link:presentationLink link:calculationLink link:definitionLink 000067 - Schedule - Average Annual Total Returns {Transposed} {- Calvert VP NASDAQ 100 Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000068 - Document - Risk/Return Detail {Unlabeled} - Calvert VP NASDAQ 100 Index Portfolio link:presentationLink link:calculationLink link:definitionLink 000069 - Disclosure - Risk/Return Detail Data {Elements} - Calvert VP NASDAQ 100 Index Portfolio link:presentationLink link:calculationLink link:definitionLink 000071 - Document - Risk/Return Summary {Unlabeled} - Calvert VP Russell 2000 Small Cap Index Portfolio link:presentationLink link:calculationLink link:definitionLink 000072 - Schedule - Shareholder Fees {- Calvert VP Russell 2000 Small Cap Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000073 - Schedule - Annual Fund Operating Expenses {- Calvert VP Russell 2000 Small Cap Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000074 - Schedule - Expense Example {Transposed} {- Calvert VP Russell 2000 Small Cap Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000075 - Schedule - Expense Example, No Redemption {Transposed} {- Calvert VP Russell 2000 Small Cap Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000076 - Schedule - Annual Total Returns - Calvert VP Russell 2000 Small Cap Index Portfolio [BarChart] link:presentationLink link:calculationLink link:definitionLink 000077 - Schedule - Average Annual Total Returns {Transposed} {- Calvert VP Russell 2000 Small Cap Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000078 - Document - Risk/Return Detail {Unlabeled} - Calvert VP Russell 2000 Small Cap Index Portfolio link:presentationLink link:calculationLink link:definitionLink 000079 - Disclosure - Risk/Return Detail Data {Elements} - Calvert VP Russell 2000 Small Cap Index Portfolio link:presentationLink link:calculationLink link:definitionLink 000081 - Document - Risk/Return Summary {Unlabeled} - Calvert VP EAFE International Index Portfolio Class I link:presentationLink link:calculationLink link:definitionLink 000082 - Schedule - Shareholder Fees {- Calvert VP EAFE International Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000083 - Schedule - Annual Fund Operating Expenses {- Calvert VP EAFE International Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000084 - Schedule - Expense Example {Transposed} {- Calvert VP EAFE International Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000085 - Schedule - Expense Example, No Redemption {Transposed} {- Calvert VP EAFE International Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000086 - Schedule - Annual Total Returns - Calvert VP EAFE International Index Portfolio [BarChart] link:presentationLink link:calculationLink link:definitionLink 000087 - Schedule - Average Annual Total Returns {Transposed} {- Calvert VP EAFE International Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000088 - Document - Risk/Return Detail {Unlabeled} - Calvert VP EAFE International Index Portfolio Class I link:presentationLink link:calculationLink link:definitionLink 000089 - Disclosure - Risk/Return Detail Data {Elements} - Calvert VP EAFE International Index Portfolio link:presentationLink link:calculationLink link:definitionLink 000091 - Document - Risk/Return Summary {Unlabeled} - Calvert VP Investment Grade Bond Index Portfolio link:presentationLink link:calculationLink link:definitionLink 000092 - Schedule - Shareholder Fees {- Calvert VP Barclays Capital Aggregate Bond Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000093 - Schedule - Annual Fund Operating Expenses {- Calvert VP Barclays Capital Aggregate Bond Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000094 - Schedule - Expense Example {Transposed} {- Calvert VP Barclays Capital Aggregate Bond Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000095 - Schedule - Expense Example, No Redemption {Transposed} {- Calvert VP Barclays Capital Aggregate Bond Index Portfolio} link:presentationLink link:calculationLink link:definitionLink 000096 - 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Schedule - Annual Fund Operating Expenses {- Calvert VP S&P MidCap 400 Index Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000104 - Schedule - Expense Example {Transposed} {- Calvert VP S&P MidCap 400 Index Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000105 - Schedule - Expense Example, No Redemption {Transposed} {- Calvert VP S&P MidCap 400 Index Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000106 - Schedule - Annual Total Returns {- Calvert VP S&P MidCap 400 Index Portfolio Class F [BarChart]} link:presentationLink link:calculationLink link:definitionLink 000107 - Schedule - Average Annual Total Returns {Transposed} {- Calvert VP S&P MidCap 400 Index Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000108 - Document - Risk/Return Detail {Unlabeled} - Calvert VP S&P MidCap 400 Index Portfolio Class F link:presentationLink link:calculationLink link:definitionLink 000109 - Disclosure - Risk/Return Detail Data {Elements} - Calvert VP S&P MidCap 400 Index Portfolio (Class F) link:presentationLink link:calculationLink link:definitionLink 000111 - Document - Risk/Return Summary {Unlabeled} - Calvert VP Russell 2000 Small Cap Index Portfolio Class F link:presentationLink link:calculationLink link:definitionLink 000112 - Schedule - Shareholder Fees {- Calvert VP Russell 2000 Small Cap Index Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000113 - Schedule - Annual Fund Operating Expenses {- Calvert VP Russell 2000 Small Cap Index Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000114 - Schedule - Expense Example {Transposed} {- Calvert VP Russell 2000 Small Cap Index Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000115 - Schedule - Expense Example, No Redemption {Transposed} {- Calvert VP Russell 2000 Small Cap Index Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000116 - 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Schedule - Annual Fund Operating Expenses {- Calvert VP EAFE International Index Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000124 - Schedule - Expense Example {Transposed} {- Calvert VP EAFE International Index Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000125 - Schedule - Expense Example, No Redemption {Transposed} {- Calvert VP EAFE International Index Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000126 - Schedule - Annual Total Returns - Calvert VP EAFE International Index Portfolio Class F [BarChart] link:presentationLink link:calculationLink link:definitionLink 000127 - Schedule - Average Annual Total Returns {Transposed} {- Calvert VP EAFE International Index Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000128 - Document - Risk/Return Detail {Unlabeled} - Calvert VP EAFE International Index Portfolio Class F link:presentationLink link:calculationLink link:definitionLink 000129 - Disclosure - Risk/Return Detail Data {Elements} - Calvert VP EAFE International Index Portfolio Class F link:presentationLink link:calculationLink link:definitionLink 000131 - Document - Risk/Return Summary {Unlabeled} - Calvert VP Volatility Managed Moderate Portfolio link:presentationLink link:calculationLink link:definitionLink 000132 - Schedule - Shareholder Fees {- Calvert VP Volatility Managed Moderate Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000133 - Schedule - Annual Fund Operating Expenses {- Calvert VP Volatility Managed Moderate Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000134 - Schedule - Expense Example {Transposed} {- Calvert VP Volatility Managed Moderate Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000135 - Schedule - Expense Example, No Redemption {Transposed} {- Calvert VP Volatility Managed Moderate Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000136 - Schedule - Annual Total Returns - Calvert VP Volatility Managed Moderate Portfolio Class F [BarChart] link:presentationLink link:calculationLink link:definitionLink 000137 - Schedule - Average Annual Total Returns {Transposed} {- Calvert VP Volatility Managed Moderate Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000138 - Document - Risk/Return Detail {Unlabeled} - Calvert VP Volatility Managed Moderate Portfolio Class F link:presentationLink link:calculationLink link:definitionLink 000139 - Disclosure - Risk/Return Detail Data {Elements} - Calvert VP Volatility Managed Moderate Portfolio link:presentationLink link:calculationLink link:definitionLink 000141 - Document - Risk/Return Summary {Unlabeled} - Calvert VP Volatility Managed Moderate Growth Portfolio link:presentationLink link:calculationLink link:definitionLink 000142 - Schedule - Shareholder Fees {- Calvert VP Volatility Managed Moderate Growth Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000143 - Schedule - Annual Fund Operating Expenses {- Calvert VP Volatility Managed Moderate Growth Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000144 - Schedule - Expense Example {Transposed} {- Calvert VP Volatility Managed Moderate Growth Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000145 - Schedule - Expense Example, No Redemption {Transposed} {- Calvert VP Volatility Managed Moderate Growth Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000146 - Schedule - Annual Total Returns - Calvert VP Volatility Managed Moderate Growth Portfolio Class F [BarChart] link:presentationLink link:calculationLink link:definitionLink 000147 - Schedule - Average Annual Total Returns {Transposed} {- Calvert VP Volatility Managed Moderate Growth Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000148 - Document - Risk/Return Detail {Unlabeled} - Calvert VP Volatility Managed Moderate Growth Portfolio Class F link:presentationLink link:calculationLink link:definitionLink 000149 - Disclosure - Risk/Return Detail Data {Elements} - Calvert VP Volatility Managed Moderate Growth Portfolio link:presentationLink link:calculationLink link:definitionLink 000151 - Document - Risk/Return Summary {Unlabeled} - Calvert VP Volatility Managed Growth Portfolio link:presentationLink link:calculationLink link:definitionLink 000152 - Schedule - Shareholder Fees {- Calvert VP Volatility Managed Growth Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000153 - Schedule - Annual Fund Operating Expenses {- Calvert VP Volatility Managed Growth Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000154 - Schedule - Expense Example {Transposed} {- Calvert VP Volatility Managed Growth Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000155 - Schedule - Expense Example, No Redemption {Transposed} {- Calvert VP Volatility Managed Growth Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000156 - Schedule - Annual Total Returns - Calvert VP Volatility Managed Growth Portfolio Class F [BarChart] link:presentationLink link:calculationLink link:definitionLink 000157 - Schedule - Average Annual Total Returns {Transposed} {- Calvert VP Volatility Managed Growth Portfolio Class F} link:presentationLink link:calculationLink link:definitionLink 000158 - Document - Risk/Return Detail {Unlabeled} - Calvert VP Volatility Managed Growth Portfolio Class F link:presentationLink link:calculationLink link:definitionLink 000159 - Disclosure - Risk/Return Detail Data {Elements} - Calvert VP Volatility Managed Growth Portfolio link:presentationLink link:calculationLink link:definitionLink