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Investments of Insurance Subsidiaries (Tables) | 6 Months Ended
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Jun. 30, 2023
Investments, Debt and Equity Securities [Abstract] |
Schedule of Investments | A summary of our insurance subsidiaries’ investments at June 30, 2023 and December 31, 2022 follows (dollars in millions):
|  | June 30, 2023 |
|  |  |  |  | Unrealized Amounts |  |  |  |
|  | Amortized Cost |  |  | Gains |  |  | Losses |  |  | Fair Value |
Debt securities |  | $ | 413 |  |  | $ | — |  |  | $ | (36 | ) |  | $ | 377 |
Money market funds and other |  |  | 106 |  |  |  | — |  |  |  | — |  |  |  | 106 |
|  | $ | 519 |  |  | $ | — |  |  | $ | (36 | ) |  |  | 483 |
Amounts classified as current assets |  |  |  |  |  |  |  |  |  |  |  | (99 | )
Investment carrying value |  |  |  |  |  |  |  |  |  |  | $ | 384 |
|  | December 31, 2022 |
|  |  |  |  | Unrealized Amounts |  |  |  |
|  | Amortized Cost |  |  | Gains |  |  | Losses |  |  | Fair Value |
Debt securities |  | $ | 415 |  |  | $ | — |  |  | $ | (38 | ) |  | $ | 377 |
Money market funds and other |  |  | 96 |  |  |  | — |  |  |  | — |  |  |  | 96 |
|  | $ | 511 |  |  | $ | — |  |  | $ | (38 | ) |  |  | 473 |
Amounts classified as current assets |  |  |  |  |  |  |  |  |  |  |  | (92 | )
Investment carrying value |  |  |  |  |  |  |  |  |  |  | $ | 381 |
Schedule of Maturities of Investments | Scheduled maturities of investments in debt securities at June 30, 2023 were as follows (dollars in millions):
|  | Amortized Cost |  |  | Fair Value |
Due in one year or less |  | $ | 23 |  |  | $ | 22 |
Due after one year through five years |  |  | 138 |  |  |  | 131 |
Due after five years through ten years |  |  | 166 |  |  |  | 146 |
Due after ten years |  |  | 86 |  |  |  | 78 |
|  | $ | 413 |  |  | $ | 377 |

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