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Investments (Other Invested Assets) (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2021 | Dec. 31, 2020
Document Period End Date | Jun. 30, 2021 |
Other invested assets | $ 2,924 | $ 2,829
Equity Release Mortgages [Member] |  |
Other invested assets | 958 | 935
Limited Partner [Member] |  |
Other invested assets | 1,611 | 1,367
Derivatives |  |
Other invested assets | 146 | 140
Fair Value Option Contractholder Directed Unit Linked Investments [Member] |  |
Other invested assets | 54 | 289
Other |  |
Other invested assets | $ 155 | $ 98

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