| Mar 31,
2020 | Mar 31,
2021 | Mar 31,
2022 | Mar 31,
2023 | Mar 31,
2024 |
|---|
| Cash and deposits | - | 5,385 | 8,614 | 13,812 | 12,653 |
|---|
| Trade accounts receivable | - | 335 | 607 | 340 | 190 |
|---|
| Equity underwritten | - | 3,736 | 11,626 | 21,768 | 50,985 |
|---|
| Other | - | 166 | 346 | 1,360 | 1,100 |
|---|
| Current assets | - | 20,539 | 28,036 | 37,283 | 64,930 |
|---|
| Assets for lease | - | 19,753 | 1,117 | 8,893 | 8,171 |
|---|
| Assets for lease | - | 19,753 | 1,117 | 8,893 | 8,171 |
|---|
| Facilities attached to buildings | - | 18 | 65 | 62 | 59 |
|---|
| Tools, furniture and fixtures | - | 4 | 5 | 4 | 3 |
|---|
| Own-used assets | - | 22 | 71 | 67 | 62 |
|---|
| Property, plant and equipment | - | 19,776 | 1,189 | 8,960 | 8,233 |
|---|
| Goodwill | - | 414 | 361 | 309 | 257 |
|---|
| Software | - | 1 | 2 | 28 | 37 |
|---|
| Intangible assets | - | 415 | 364 | 337 | 294 |
|---|
| Shares of subsidiaries and associates | - | 42 | 111 | 193 | 285 |
|---|
| Investments in capital of subsidiaries and associates | - | 12 | 15 | 48 | 83 |
|---|
| Deferred tax assets | - | - | - | 1,375 | 1,740 |
|---|
| Long-term loans receivable from subsidiaries and associates | - | - | - | 1,712 | 1,712 |
|---|
| Other | - | 67 | 79 | 155 | 132 |
|---|
| Deferred tax assets | - | - | - | 1,375 | 1,740 |
|---|
| Investments and other assets | - | 121 | 206 | 1,773 | 2,241 |
|---|
| Other | - | 67 | 79 | 155 | 132 |
|---|
| Investments and other assets | - | 121 | 206 | 1,773 | 2,241 |
|---|
| Non-current assets | - | 20,314 | 1,759 | 11,071 | 10,769 |
|---|
| Assets | - | 40,853 | 29,795 | 48,354 | 75,700 |
|---|
| Short-term borrowings | - | 18,809 | 15,119 | 8,800 | 32,999 |
|---|
| Commercial papers | - | - | - | - | 2,000 |
|---|
| Accounts payable - other | - | 471 | 149 | 383 | 216 |
|---|
| Current portion of long-term borrowings | - | - | - | 502 | 502 |
|---|
| Income taxes payable | - | - | 5 | 2,914 | 1,417 |
|---|
| Accounts payable - other | - | 471 | 149 | 383 | 216 |
|---|
| Contract liabilities | - | - | 759 | 3,320 | 3,518 |
|---|
| Income taxes payable | - | - | 5 | 2,914 | 1,417 |
|---|
| Provision for bonuses | - | - | - | - | 136 |
|---|
| Contract liabilities | - | - | 759 | 3,320 | 3,518 |
|---|
| Other | - | 122 | 445 | 722 | 365 |
|---|
| Provision for bonuses | - | - | - | - | 136 |
|---|
| Current liabilities | - | 23,179 | 16,478 | 16,643 | 41,155 |
|---|
| Other | - | 122 | 445 | 722 | 365 |
|---|
| Current liabilities | - | 23,179 | 16,478 | 16,643 | 41,155 |
|---|
| Long-term borrowings | - | - | - | 13,904 | 13,402 |
|---|
| Asset retirement obligations | - | 16 | 27 | 27 | 27 |
|---|
| Non-current liabilities | - | 15,290 | 157 | 13,932 | 13,430 |
|---|
| Liabilities | - | 38,470 | 16,636 | 30,575 | 54,585 |
|---|
| Share capital | - | 100 | 100 | 1,032 | 1,032 |
|---|
| Legal capital surplus | - | - | - | 1,032 | 1,032 |
|---|
| Other capital surplus | - | - | - | 2,880 | 2,880 |
|---|
| Capital surplus | - | 10,695 | 2,980 | 3,912 | 3,912 |
|---|
| Capital surplus | - | 10,695 | 2,980 | 3,912 | 3,912 |
|---|
| Retained earnings brought forward | - | - | - | 12,700 | 15,782 |
|---|
| Retained earnings | - | -7,714 | 10,363 | 12,809 | 16,179 |
|---|
| Retained earnings | - | -7,714 | 10,363 | 12,809 | 16,179 |
|---|
| Treasury shares | - | - | - | - | - |
|---|
| Shareholders' equity | - | 3,080 | 13,444 | 17,754 | 21,123 |
|---|
| Deferred gains or losses on hedges | - | -696 | -302 | 6 | -26 |
|---|
| Valuation and translation adjustments | - | -696 | -302 | 6 | -26 |
|---|
| Share acquisition rights | - | - | 17 | 17 | 17 |
|---|
| Net assets | 727 | 2,383 | 13,158 | 17,778 | 21,114 |
|---|
| Liabilities and net assets | - | 40,853 | 29,795 | 48,354 | 75,700 |
|---|