| Dec 31,
2017 | Dec 31,
2018 | Dec 31,
2019 | Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 |
|---|
| Profit (loss) before income taxes | 98 | 176 | 191 | 217 | 289 | 324 | 421 |
|---|
| Depreciation | 12 | 12 | 15 | 19 | 20 | 14 | 19 |
|---|
| Interest income | -0 | -0 | -0 | -0 | -0 | -0 | -0 |
|---|
| Interest expenses | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
|---|
| Gain on sale of businesses | - | - | - | - | - | - | -29 |
|---|
| Decrease (increase) in trade receivables | -13 | 7 | -3 | 1 | -1 | -3 | 16 |
|---|
| Decrease (increase) in inventories | -1 | -9 | 3 | 7 | -1 | 0 | 0 |
|---|
| Decrease (increase) in deposit in trust | - | - | - | - | - | -19 | 14 |
|---|
| Decrease (increase) in other current assets | -10 | -19 | 19 | 4 | -3 | -5 | -2 |
|---|
| Increase (decrease) in trade payables | 1 | -0 | -0 | 0 | 0 | 0 | -3 |
|---|
| Increase (decrease) in accounts payable - other | 53 | -13 | 17 | -21 | 61 | 6 | -16 |
|---|
| Increase (decrease) in advances received | 4 | 59 | 33 | 45 | 101 | -404 | - |
|---|
| Increase (decrease) in contract liabilities | - | - | - | - | - | 413 | 26 |
|---|
| Increase (decrease) in provision for share awards | - | - | - | - | - | 8 | 7 |
|---|
| Increase (decrease) in other current liabilities | 19 | -5 | 22 | 14 | 19 | -3 | 3 |
|---|
| Other, net | 0 | 0 | 0 | 0 | 0 | 0 | -0 |
|---|
| Subtotal | 174 | 213 | 315 | 291 | 491 | 330 | 457 |
|---|
| Interest received | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
|---|
| Interest paid | -0 | -0 | -0 | -0 | -0 | -0 | -0 |
|---|
| Income taxes paid | -10 | -64 | -54 | -55 | -58 | -116 | -82 |
|---|
| Net cash provided by (used in) operating activities | 164 | 149 | 261 | 236 | 433 | 213 | 374 |
|---|
| Payments into time deposits | -30 | -30 | -180 | -180 | -330 | -780 | -1,095 |
|---|
| Proceeds from withdrawal of time deposits | 30 | 30 | 30 | 180 | 330 | 330 | 1,095 |
|---|
| Purchase of property, plant and equipment | -1 | -0 | -3 | -1 | -52 | -1 | -6 |
|---|
| Purchase of intangible assets | -13 | -12 | -12 | -10 | -14 | -39 | -142 |
|---|
| Proceeds from sale of businesses | - | - | - | - | - | - | 29 |
|---|
| Other, net | -0 | -0 | 0 | -28 | - | -0 | -0 |
|---|
| Net cash provided by (used in) investing activities | -15 | -13 | -164 | -38 | -66 | -490 | -119 |
|---|
| Net increase (decrease) in short-term borrowings | - | - | - | - | - | 50 | -50 |
|---|
| Proceeds from issuance of shares resulting from exercise of share acquisition rights | - | - | - | 2 | 13 | 65 | 4 |
|---|
| Purchase of treasury shares | - | - | - | -0 | - | -39 | -0 |
|---|
| Dividends paid | - | -7 | -12 | -15 | -22 | -45 | -63 |
|---|
| Other, net | -1 | -1 | -1 | -1 | -2 | -2 | -2 |
|---|
| Net cash provided by (used in) financing activities | -18 | 20 | 392 | -25 | -18 | 30 | -111 |
|---|
| Net increase (decrease) in cash and cash equivalents | 131 | 155 | 489 | 172 | 348 | -247 | 144 |
|---|