| Mar 31,
2021 | Mar 31,
2022 | Mar 31,
2023 | Mar 31,
2024 |
|---|
| Cash and deposits | - | 683 | 602 | 1,027 |
|---|
| Accounts receivable - trade and contract assets | - | 2,405 | 2,876 | 2,700 |
|---|
| Lease receivables and investments in leases | - | 176 | 161 | 180 |
|---|
| Merchandise | - | 8 | 20 | 7 |
|---|
| Supplies | - | 5 | 3 | 5 |
|---|
| Prepaid expenses | - | - | 18 | 22 |
|---|
| Other | - | 67 | 101 | 65 |
|---|
| Allowance for doubtful accounts | - | -0 | -0 | - |
|---|
| Current assets | - | 3,343 | 3,781 | 3,984 |
|---|
| Buildings and structures, net | - | 442 | 419 | 397 |
|---|
| Lease aseets net | - | 9 | 9 | 7 |
|---|
| Tools, furniture and fixtures, net | - | 11 | 9 | 8 |
|---|
| Land | - | 267 | 267 | 267 |
|---|
| Leased assets, net | - | 57 | 32 | 19 |
|---|
| Property, plant and equipment | - | 787 | 736 | 698 |
|---|
| Goodwill | - | 1,798 | 1,696 | 1,593 |
|---|
| Customer-related intangible assets | - | 3,295 | 3,104 | 2,913 |
|---|
| Leasehold interests in land | - | - | 13 | - |
|---|
| Software | - | - | 93 | 98 |
|---|
| Software in progress | - | - | 127 | 235 |
|---|
| Other | - | 159 | 3 | 3 |
|---|
| Intangible assets | - | 5,252 | 5,036 | 4,841 |
|---|
| Investment securities | - | 10 | 12 | 15 |
|---|
| Investments in capital | - | - | 2 | 2 |
|---|
| Distressed receivables | - | - | 1 | 1 |
|---|
| Long-term prepaid expenses | - | - | 0 | 2 |
|---|
| Other | - | 33 | 32 | 37 |
|---|
| Allowance for doubtful accounts | - | -1 | -1 | -1 |
|---|
| Investments and other assets | - | 42 | 47 | 51 |
|---|
| Non-current assets | - | 6,081 | 5,819 | 5,590 |
|---|
| Assets | - | 9,424 | 9,600 | 9,574 |
|---|
| Accounts payable - trade | - | 1,312 | 1,610 | 1,280 |
|---|
| Short-term borrowings | - | - | 580 | 580 |
|---|
| Current portion of long-term borrowings | - | 286 | 506 | 308 |
|---|
| Lease liabilities | - | 27 | 18 | 16 |
|---|
| Income taxes payable | - | 207 | 4 | 243 |
|---|
| Contract liabilities | - | 988 | 1,079 | 1,144 |
|---|
| Provision for bonuses | - | 85 | 82 | 79 |
|---|
| Accounts payable - other | - | - | 52 | 45 |
|---|
| Accrued expenses | - | - | 59 | 65 |
|---|
| Advances received | - | - | 6 | 6 |
|---|
| Deposits received | - | - | 6 | 16 |
|---|
| Other | - | 382 | 222 | 393 |
|---|
| Current liabilities | - | 3,287 | 4,223 | 4,043 |
|---|
| Long-term borrowings | - | 2,449 | 1,333 | 1,227 |
|---|
| Lease liabilities | - | 34 | 15 | 4 |
|---|
| Provision for retirement benefits | - | - | 132 | 136 |
|---|
| Deferred tax liabilities | - | 1,029 | 984 | 892 |
|---|
| Non-current liabilities | - | 3,657 | 2,465 | 2,259 |
|---|
| Liabilities | - | 6,944 | 6,688 | 6,302 |
|---|
| Share capital | - | 50 | 50 | 77 |
|---|
| Legal capital surplus | - | - | 1,169 | 1,196 |
|---|
| Other capital surplus | - | - | 1,419 | 1,419 |
|---|
| Capital surplus | - | 2,588 | 2,588 | 2,615 |
|---|
| Retained earnings brought forward | - | - | 272 | 577 |
|---|
| Retained earnings | - | -159 | 272 | 577 |
|---|
| Shareholders' equity | - | 2,479 | 2,910 | 3,269 |
|---|
| Valuation difference on available-for-sale securities | - | 0 | 1 | 2 |
|---|
| Valuation and translation adjustments | - | 0 | 1 | 2 |
|---|
| Net assets | 2,294 | 2,480 | 2,911 | 3,271 |
|---|
| Liabilities and net assets | - | 9,424 | 9,600 | 9,574 |
|---|