| Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Net income (loss) | -407 | -107 | -263 | -260 |
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| Depreciation and amortization | 15 | 14 | 20 | 24 |
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| Stock-based compensation expense | 292 | 28 | 69 | 51 |
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| Impairments | - | - | - | 4 |
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| Loss (income) from equity method investments | -7 | 11 | 16 | 15 |
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| Deferred income taxes and uncertain tax positions | 3 | -1 | - | - |
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| Release of indemnification assets | -2 | -1 | - | - |
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| Distributions of earnings from equity method investments | -0 | - | - | -3 |
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| (Gain) loss on sale of assets, net | 0 | - | -48 | -4 |
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| Other non-cash items | -0 | -3 | 4 | -1 |
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| Receivables, net | 149 | 204 | 460 | 75 |
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| Prepaid expense and other current assets | 4 | 17 | 6 | -8 |
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| Other assets | -4 | 0 | 0 | -0 |
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| Medical claims and related payables | -76 | -108 | -441 | -194 |
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| Accounts payable and accrued expenses | 19 | 66 | 32 | 5 |
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| Other liabilities | -2 | -12 | -17 | -2 |
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| Net cash provided by (used in) operating activities | -148 | -131 | -156 | -58 |
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| Purchase of property and equipment | 7 | 15 | 16 | 13 |
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| Purchase of intangible assets | 7 | 17 | 15 | 28 |
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| Investments in loans receivable and other | 83 | 7 | 20 | 14 |
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| Investments in marketable securities | - | 458 | 115 | 12 |
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| Proceeds from maturities and sales of marketable securities and other | - | - | 164 | 207 |
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| Proceeds from Divestiture of Businesses, Net of Cash Divested | -1 | 1 | 2 | - |
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| Net cash provided by (used in) investing activities | -91 | -444 | -44 | 140 |
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| Proceeds from equity issuances, net | - | 33 | 12 | 1 |
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| Common stock repurchase | - | - | 200 | - |
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| Repayments of long-term debt | 120 | 5 | 5 | 4 |
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| Net cash provided by (used in) financing activities | 1,154 | 28 | -193 | -3 |
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| Net increase (decrease) in cash, cash equivalents and restricted cash and equivalents | 916 | -547 | -393 | 80 |
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