| Dec 31, 2018 | Dec 31, 2019 | Dec 31, 2020 | Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Cash and cash equivalents | 221 | 203 | 247 | 396 | 348 | 665 | 803 |
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| Restricted cash | 29 | 31 | 52 | 93 | 52 | 47 | 111 |
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| Accounts receivable, less allowance for credit losses | 85 | 38 | 100 | 88 | 251 | 341 | 336 |
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| Contract assets | - | - | - | 25 | 47 | 41 | 145 |
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| Inventories | 132 | 110 | 142 | 143 | 268 | 503 | 545 |
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| Deferred Costs, Current | 62 | 58 | 41 | 25 | 46 | 46 | 59 |
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| Prepaid Expense and Other Assets, Current | 34 | 28 | 31 | 31 | 44 | 51 | 46 |
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| Total current assets | 673 | 473 | 619 | 806 | 1,056 | 1,693 | 2,044 |
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| Property, plant and equipment, net | - | - | - | 604 | 600 | 493 | 403 |
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| Operating lease right-of-use assets | - | - | 36 | 107 | 127 | 140 | 122 |
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| Restricted cash | 31 | 144 | 117 | 127 | 118 | 34 | 37 |
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| Deferred cost of revenue | 103 | 7 | 2 | 1 | 5 | 3 | 4 |
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| Other long-term assets | 35 | 42 | 35 | 39 | 40 | 50 | 46 |
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| Total assets | 1,390 | 1,323 | 1,454 | 1,726 | 1,947 | 2,414 | 2,657 |
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| Accounts payable | 67 | 56 | 58 | 73 | 162 | 132 | 93 |
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| Accrued warranty | 19 | 10 | 10 | 12 | 17 | 19 | 17 |
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| Accrued expenses and other current liabilities | 70 | 70 | 112 | 114 | 144 | 131 | 138 |
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| Deferred revenue and customer deposits | 94 | 89 | 114 | 90 | 159 | 129 | 243 |
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| Operating lease liabilities | - | - | 8 | 13 | 16 | 20 | 20 |
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| Financing obligations | - | 11 | 13 | 15 | 17 | 39 | 12 |
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| Recourse debt | - | - | - | - | - | - | 114 |
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| Total current liabilities | 280 | 574 | 436 | 342 | 542 | 470 | 637 |
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| Deferred revenue and customer deposits | 242 | 126 | 87 | 90 | 56 | 19 | 43 |
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| Operating lease liabilities | - | - | 42 | 106 | 132 | 142 | 125 |
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| Financing obligations | - | 446 | 460 | 462 | 442 | 406 | 244 |
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| Recourse debt | - | - | - | - | - | - | 1,010 |
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| Non-recourse debt | - | - | - | - | - | - | 4 |
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| Other long-term liabilities | 56 | 28 | 12 | 17 | 9 | 9 | 9 |
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| Total liabilities | 1,299 | 1,490 | 1,313 | 1,519 | 1,568 | 1,893 | 2,072 |
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| Common Stock, Value, Issued | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Additional paid-in capital | 2,481 | 2,687 | 3,183 | 3,219 | 3,906 | 4,370 | 4,463 |
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| Accumulated other comprehensive loss | 0 | 0 | -0 | -0 | -1 | -2 | -3 |
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| Accumulated deficit | -2,572 | -2,946 | -3,104 | -3,263 | -3,564 | -3,867 | -3,898 |
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| Total stockholders’ equity attributable to common stockholders | -92 | -260 | 79 | -44 | 379 | 521 | 585 |
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| Noncontrolling interest | 125 | 91 | 62 | 42 | 38 | 19 | 23 |
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| Total stockholders’ equity | - | - | - | - | 379 | 521 | 585 |
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| Total liabilities and stockholders’ equity | 1,390 | 1,323 | 1,454 | 1,726 | 1,947 | 2,414 | 2,657 |
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