| Mar 31,
2015 | Mar 31,
2016 | Mar 31,
2017 | Mar 31,
2018 | Mar 31,
2019 | Mar 31,
2020 | Mar 31,
2021 | Mar 31,
2022 | Mar 31,
2023 | Mar 31,
2024 |
|---|
| Profit (loss) before income taxes | 628 | 879 | 1,004 | 1,192 | 1,764 | 1,541 | -709 | -541 | -2 | -165 |
|---|
| Depreciation | 38 | 42 | 41 | 65 | 62 | 64 | 65 | 70 | 38 | 28 |
|---|
| Increase (decrease) in allowance for doubtful accounts | -0 | -0 | -0 | -0 | 0 | -0 | -0 | -0 | 0 | -0 |
|---|
| Increase (decrease) in provision for shareholder benefit program | - | - | 7 | 7 | -0 | 5 | -18 | - | - | 17 |
|---|
| Interest and dividend income | -2 | -0 | -0 | - | -0 | -0 | - | -0 | - | - |
|---|
| Dividend income of insurance | -2 | -0 | - | -0 | - | -1 | -1 | - | -1 | - |
|---|
| Subsidy income | - | -1 | - | - | - | - | -62 | -109 | -46 | -5 |
|---|
| Foreign exchange losses (gains) | -1 | 2 | -0 | -0 | -1 | 0 | -0 | -0 | -0 | -0 |
|---|
| Loss (gain) on sale of investment securities | - | - | - | - | - | - | - | - | -0 | - |
|---|
| Decrease (increase) in trade receivables | -36 | -108 | -175 | -116 | -177 | 379 | 245 | -36 | -164 | -47 |
|---|
| Increase (decrease) in trade payables | 13 | 45 | 5 | -10 | 53 | -80 | -36 | 8 | 66 | 18 |
|---|
| Other, net | 41 | 42 | 10 | 12 | 75 | -192 | -212 | 165 | 59 | -100 |
|---|
| Subtotal | 390 | 870 | 1,016 | 1,107 | 1,665 | 1,715 | -727 | -444 | -49 | -254 |
|---|
| Interest and dividends received | 2 | 0 | 0 | 0 | 0 | 0 | - | 0 | - | - |
|---|
| Subsidies received | - | 1 | - | - | - | - | 62 | 109 | 46 | 5 |
|---|
| Income taxes paid | -75 | -309 | -416 | -419 | -543 | -735 | -489 | -0 | -4 | -64 |
|---|
| Income taxes refund | - | - | - | - | - | - | - | 453 | 0 | - |
|---|
| Net cash provided by (used in) operating activities | 317 | 561 | 600 | 688 | 1,121 | 981 | -1,154 | 118 | -7 | -313 |
|---|
| Purchase of property, plant and equipment | -49 | -24 | -22 | -141 | -36 | -38 | -58 | -16 | -15 | -36 |
|---|
| Purchase of intangible assets | -3 | -2 | - | -7 | -3 | - | - | - | - | -2 |
|---|
| Purchase of investment securities | - | - | - | - | - | - | -1,509 | - | - | -0 |
|---|
| Proceeds from sale of investment securities | 611 | 45 | 7 | 30 | 57 | - | - | - | 1 | - |
|---|
| Other, net | -8 | -11 | -10 | -10 | -10 | -10 | -10 | -10 | -10 | -10 |
|---|
| Net cash provided by (used in) investing activities | 551 | 4 | -158 | -103 | 18 | -50 | -1,578 | -17 | -24 | -48 |
|---|
| Purchase of treasury shares | - | - | - | - | - | - | - | -0 | - | -0 |
|---|
| Net cash provided by (used in) financing activities | -1 | 382 | 6 | 2 | 1 | 1 | - | -0 | - | -0 |
|---|
| Net increase (decrease) in cash and cash equivalents | 867 | 946 | 449 | 587 | 1,140 | 931 | -2,732 | 100 | -31 | -361 |
|---|