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Separate Accounts (Schedule of Fair Value of Separate Account Assets) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Fair Value, Separate Account Investment [Line Items] |  |
Separate account assets | $ 143,536 | $ 182,583
Separate Account, Mutual Funds [Member] |  |
Fair Value, Separate Account Investment [Line Items] |  |
Separate account assets | 142,892 | 181,766
Separate Account, Fixed maturity AFS securities [Member] |  |
Fair Value, Separate Account Investment [Line Items] |  |
Separate account assets | 169 | 207
Separate Account, Common Stock [Member] |  |
Fair Value, Separate Account Investment [Line Items] |  |
Separate account assets | 258 | 432
Separate Account, Cash and Invested Cash [Member] |  |
Fair Value, Separate Account Investment [Line Items] |  |
Separate account assets | 98 | 54
Separate Account, Other [Member] |  |
Fair Value, Separate Account Investment [Line Items] |  |
Separate account assets | $ 119 | $ 124

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