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Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2022
Accounting Policies [Abstract] |
Schedule of cash and cash equivalents | The restricted cash and cash equivalents presented below are included in “Restricted investments” in the accompanying consolidated balance sheets.
| December 31,
| 2022 |  | 2021 |  | 2020
| (In millions)
Cash and cash equivalents | $ | 4,006 |  |  | $ | 4,438 |  |  | $ | 4,154 |
Restricted cash and cash equivalents | 42 |  |  | 68 |  |  | 69 |
Total cash and cash equivalents, and restricted cash and cash equivalents presented in the consolidated statements of cash flows | $ | 4,048 |  |  | $ | 4,506 |  |  | $ | 4,223 |
Schedule of restricted cash and cash equivalents | The restricted cash and cash equivalents presented below are included in “Restricted investments” in the accompanying consolidated balance sheets.
| December 31,
| 2022 |  | 2021 |  | 2020
| (In millions)
Cash and cash equivalents | $ | 4,006 |  |  | $ | 4,438 |  |  | $ | 4,154 |
Restricted cash and cash equivalents | 42 |  |  | 68 |  |  | 69 |
Total cash and cash equivalents, and restricted cash and cash equivalents presented in the consolidated statements of cash flows | $ | 4,048 |  |  | $ | 4,506 |  |  | $ | 4,223 |
Schedule of receivables |
| December 31,
| 2022 |  | 2021
| (In millions)
Government receivables | $ | 1,702 |  |  | $ | 1,566 |
Pharmacy rebate receivables | 291 |  |  | 276 |
Other | 309 |  |  | 335 |
Total receivables | $ | 2,302 |  |  | $ | 2,177 |
Schedule of amounts due to government agencies | Categorized by program, such amounts due government agencies included the following:
| December 31,
| 2022 |  | 2021
| (In millions)
Medicaid program: |  |  |
Minimum MLR, corridors, and profit sharing | $ | 1,145 |  |  | $ | 1,016 |
Other premium adjustments | 482 |  |  | 263 |
Medicare program: |  |  |
Risk adjustment and Part D risk sharing | 76 |  |  | 89 |
Minimum MLR and profit sharing | 84 |  |  | 101 |
Other premium adjustments | 27 |  |  | 35 |
Marketplace program: |  |  |
Risk adjustment | 230 |  |  | 902 |
Minimum MLR | 2 |  |  | 18 |
Other premium adjustments | 33 |  |  | 48 |
Total amounts due government agencies | $ | 2,079 |  |  | $ | 2,472 |
Summarized premium revenue | Significant Customers We receive the majority of our revenues under contracts or subcontracts with state Medicaid managed care programs, which are considered individual external customers. Instances where these contracts were at least 10% of our total premium revenue for the year ended December 31, 2022 were New York with 10.0%, Texas with 12.0% and Washington with 13.6%.

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