| (単位:百万ドル) | 1Q12 | 2Q12 | 3Q12 | 1Q13 | 2Q13 | 3Q13 | 4Q13 | 1Q14 | 2Q14 | 3Q14 | 4Q14 | 1Q15 | 2Q15 | 3Q15 | 4Q15 | 1Q16 | 2Q16 | 3Q16 | 4Q16 | 1Q17 | 2Q17 | 1Q17 | 2Q17 | 3Q17 | 4Q17 | 1Q18 | 2Q18 | 3Q18 | 4Q18 | 1Q19 | 2Q19 | 3Q19 | 4Q19 | 1Q20 | 2Q20 | 3Q20 | 4Q20 | 1Q21 | 2Q21 | 3Q21 | 4Q21 | 1Q22 | 2Q22 | 3Q22 | 4Q22 | 1Q23 | 2Q23 | 3Q23 | 4Q23 | 1Q24 | 2Q24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 現金同等物 | 25 | 18 | 17 | 37 | 31 | 14 | 32 | 27 | 12 | 19 | 16 | 10 | 7 | 3 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 186 | 160 | 138 | 128 | 112 | 196 | 229 | 183 | 116 | 104 | 91 | 68 | 59 | 91 | 81 | 81 | 62 | 111 | 210 | 307 | 322 | 851 | 644 | 508 | 184 | 140 | 88 | 105 | 76 | 81 |
| 有価証券 | 0 | - | - | - | - | - | - | - | - | - | 11 | - | - | - | 4 | - | - | - | 0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 現金 + 有価証券 | 25 | 18 | 17 | 37 | 31 | 14 | 32 | 27 | 12 | 19 | 28 | 10 | 7 | 3 | 5 | 0 | 0 | 0 | 2 | 0 | 0 | 186 | 160 | 138 | 128 | 112 | 196 | 229 | 183 | 116 | 104 | 91 | 68 | 59 | 91 | 81 | 81 | 62 | 111 | 210 | 307 | 322 | 851 | 644 | 508 | 184 | 140 | 88 | 105 | 76 | 81 |
| 売掛金 | - | - | 2 | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 3 | - | - | 5 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 商品及び製品 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 流動資産合計 | 32 | 27 | 25 | 39 | 33 | 17 | 35 | 30 | 15 | 48 | 32 | 24 | 13 | 10 | 8 | 5 | 5 | 27 | 30 | 4 | 4 | 194 | 167 | 143 | 133 | 120 | 201 | 176 | 140 | 97 | 115 | 110 | 82 | 68 | 102 | 83 | 84 | 63 | 117 | 224 | 327 | 335 | 877 | 701 | 574 | 212 | 140 | 96 | 117 | 73 | 43 |
| 有形固定資産 | 29 | 32 | 33 | 39 | 40 | 38 | 37 | 44 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 25 | 25 | 115 | 116 | 116 | 118 | 130 | 147 | 161 | 145 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 投資有価証券 | 0 | 0 | 0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 固定資産合計 | 35 | 37 | 38 | 48 | 49 | 48 | 46 | 54 | 60 | 44 | 47 | 51 | 52 | 54 | 37 | 37 | 36 | 1 | 0 | 0 | 0 | 29 | 29 | 46 | 143 | 159 | 171 | 244 | 268 | 286 | 301 | 283 | 300 | 296 | 213 | 209 | 208 | 206 | 210 | 259 | 294 | 396 | 463 | 728 | 852 | 1,054 | 1,120 | 1,169 | 1,206 | 1,193 | 895 |
| 総資産 | 67 | 65 | 63 | 88 | 83 | 66 | 82 | 84 | 75 | 94 | 81 | 77 | 68 | 66 | 46 | 44 | 43 | 29 | 31 | 5 | 5 | 223 | 197 | 190 | 276 | 280 | 373 | 420 | 408 | 384 | 417 | 394 | 382 | 364 | 315 | 293 | 292 | 270 | 328 | 483 | 621 | 732 | 1,340 | 1,430 | 1,426 | 1,267 | 1,260 | 1,265 | 1,324 | 1,266 | 939 |
| 買掛金 | 1 | 2 | 2 | 3 | 5 | 2 | 1 | 7 | 2 | 3 | 3 | 4 | 3 | 3 | 2 | 3 | 3 | 1 | 0 | 0 | 0 | - | - | - | 50 | 3 | 2 | 4 | 11 | 3 | 7 | 7 | 21 | 27 | 29 | 24 | 23 | 25 | 25 | 27 | 2 | 7 | 5 | 17 | 4 | 9 | 49 | - | - | 55 | 55 |
| 一年内返済予定の長期借入金 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 56 | - | - | - | - | - | - | - | - | - | - | - | 162 | 163 | 163 | - | - | - | - | 25 | 47 |
| 流動負債合計 | 11 | 12 | 14 | 7 | 9 | 6 | 5 | 11 | 6 | 8 | 6 | 9 | 9 | 9 | 4 | 6 | 6 | 14 | 15 | 3 | 3 | 19 | 19 | 27 | 52 | 27 | 27 | 38 | 52 | 30 | 100 | 115 | 132 | 64 | 106 | 142 | 119 | 62 | 55 | 63 | 88 | 84 | 237 | 330 | 297 | 97 | 133 | 156 | 179 | 159 | 160 |
| 長期借入金 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 56 | - | 57 | 57 | 57 | - | 128 | 106 | 37 | 38 | - | - | - | 53 | 54 | 381 | 381 | 382 | 382 | 383 | 372 | 361 | 316 | 87 |
| 固定負債合計 | 9 | 10 | 10 | 11 | 12 | 12 | 10 | 10 | 10 | 6 | 4 | 2 | 4 | 2 | 8 | 8 | 7 | 0 | 0 | - | - | - | - | - | 0 | 0 | 0 | 57 | 5 | 76 | 75 | 75 | 83 | 153 | 133 | 64 | 64 | 25 | 25 | 61 | 114 | 123 | 449 | 459 | 456 | 524 | 527 | 539 | 519 | 461 | 224 |
| 総負債 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 52 | 27 | 28 | - | 57 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 384 |
| 資本金及び資本剰余金 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 102 | 442 | 447 | 456 | 552 | 605 | 734 | 747 | 751 | 765 | 770 | 770 | 771 | 792 | 851 | 891 | 925 | 1,025 | 1,120 | 1,248 | 1,349 | 1,522 | 1,651 | 1,652 | 1,653 | 1,653 | 1,667 | 1,703 | 1,771 | 1,836 | 1,885 |
| 利益剰余金 | -56 | -60 | -65 | -35 | -43 | -47 | -51 | -56 | -60 | -36 | -37 | -40 | -43 | -46 | -82 | -85 | -87 | -98 | -97 | -98 | -99 | -239 | -271 | -294 | -329 | -354 | -390 | -423 | -454 | -488 | -529 | -569 | -606 | -647 | -776 | -805 | -817 | -844 | -874 | -890 | -932 | -998 | -998 | -1,012 | -981 | -1,009 | -1,068 | -1,134 | -1,148 | -1,192 | -1,331 |
| 株主資本 | 46 | 42 | 38 | 68 | 61 | 47 | 42 | 38 | 33 | 54 | 45 | 40 | 29 | 28 | 7 | 3 | 2 | -9 | -7 | 2 | 1 | 203 | 177 | 162 | 223 | 252 | 345 | 325 | 297 | 277 | 241 | 202 | 166 | 146 | 75 | 86 | 109 | 181 | 247 | 359 | 418 | 524 | 653 | 640 | 672 | 645 | 599 | 570 | 624 | 645 | 554 |
| 有利子負債合計 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 56 | - | 57 | 114 | 57 | - | 128 | 106 | 37 | 38 | - | - | - | 53 | 54 | 543 | 544 | 545 | 382 | 383 | 372 | 361 | 341 | 134 |
| 純有利子負債 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | -173 | - | -59 | 10 | -34 | - | 69 | 14 | -44 | -44 | - | - | - | -254 | -268 | -308 | -100 | 37 | 198 | 242 | 283 | 256 | 264 | 52 |
| DEレシオ(%) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 17.46 | - | 20.65 | 47.27 | 28.51 | - | 87.69 | 139.82 | 43.47 | 35.09 | - | - | - | 12.83 | 10.46 | 83.2 | 85.05 | 81.15 | 59.31 | 64.0 | 65.31 | 57.83 | 52.86 | 24.18 |
| 運転資本 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |