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Derivative Financial Instruments - Carrying Amounts of Derivative Instruments (Details) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Derivative [Line Items] |  |
Total asset derivatives | $ 717 | $ 546
Total liability derivatives | 3,569 | 3,115
Derivative investments | Call options |  |
Derivative [Line Items] |  |
Total asset derivatives | 432 | 244
Other long-term investments | Embedded derivatives |  |
Derivative [Line Items] |  |
Total asset derivatives | 25 | 23
Prepaid expenses and other assets | Embedded derivatives |  |
Derivative [Line Items] |  |
Total asset derivatives | 260 | 279
Contractholder funds | FIA/ IUL embedded derivatives, included in contractholder funds |  |
Derivative [Line Items] |  |
Total liability derivatives | $ 3,569 | $ 3,115

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