In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Jun-30-21 | Mar-31-21 |
| 10-Q | 10-Q | 8-K | 10-Q | 10-Q | 8-K | 10-Q | 10-Q |
Cash flows from operating activities: | | | | | | | | |
Adjustments to reconcile net loss to net cash used in operating activities: | | | | | | | | |
Changes in operating assets and liabilities: | | | | | | | | |
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Cash flows from investing activities: | | | | | | | | |
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Cash flows from financing activities: | | | | | | | | |
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Cash and cash equivalents | | | | | | | | |
Restricted cash | | | | | | | | |
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Supplemental disclosure of cash flow information: | | | | | | | | |