Combination Roll-up and Highest Quarterly Anniversary Value GMDB [Member] Combination Roll-up and Highest Quarterly Anniversary Value GMDB Flex GMWB Joint Value [Member] Flex GMWB Joint Value Flex GMWB Single Core [Member] Flex GMWB Single Core Flex GMWB Joint Plus [Member] Flex GMWB Joint Plus Flex DB - Value [Member] Flex DB - Value Highest Quarterly Anniversary Value GMDB [Member] Highest Quarterly Anniversary Value GMDB Flex GMWB Single Value [Member] Flex GMWB Single Value Flex GMWB Single [Member] Flex GMWB Single Flex GMWB Single Plus [Member] Flex GMWB Single Plus Flex GMWB Joint Core [Member] Flex GMWB Joint Core Flex DB [Member] Flex DB C000218281 [Member] C000218281 Flex DB - Core [Member] Flex DB - Core Flex GMWB Joint [Member] Flex GMWB Joint Roll-up GMDB [Member] Roll-up GMDB