| (単位:百万ドル) | 1Q12 | 2Q12 | 3Q12 | 4Q12 | 1Q13 | 2Q13 | 3Q13 | 4Q13 | 1Q14 | 3Q14 | 4Q14 | 1Q15 | 2Q15 | 3Q15 | 4Q15 | 1Q16 | 2Q16 | 3Q16 | 4Q16 | 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 | 3Q24 | 4Q24 | 1Q25 | 2Q25 | 3Q25 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 現金同等物 | 0 | 51 | 5 | 3 | 37 | 37 | 10 | 10 | 10 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 48 | 53 | 48 | 78 | 69 | 69 | 68 | 88 | 184 | 132 | 143 | 129 | 838 | 551 | - | - | - | - | 897 | 1,179 | 1,280 | 1,230 | 1,114 | 1,026 | 1,099 | 850 | 946 | 1,007 | 1,898 | 1,464 | 1,320 |
| 有価証券 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 202 | 216 | 262 | 284 | 418 |
| 現金 + 有価証券 | 0 | 51 | 5 | 3 | 37 | 37 | 10 | 10 | 10 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 48 | 53 | 48 | 78 | 69 | 69 | 68 | 88 | 184 | 132 | 143 | 129 | 838 | 551 | - | - | - | - | 897 | 1,179 | 1,280 | 1,230 | 1,114 | 1,026 | 1,099 | 850 | 1,148 | 1,224 | 2,161 | 1,749 | 1,738 |
| 流動資産合計 | 17 | 88 | 42 | 41 | 38 | 37 | 10 | 10 | 10 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 有形固定資産 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 | - | 0 | 0 | 0 | - | 1 | 1 | 2 | 2 | 2 | 4 | 5 | 5 | 6 | 6 | 6 | 6 | 7 | 6 | 17 | 18 | 20 | 20 | 21 | 21 | 29 | 36 | 43 | 54 | 63 | 66 | 78 | 83 | 100 | 142 | 159 |
| 固定資産合計 | 309 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 総資産 | 326 | 88 | 42 | 41 | 38 | 37 | 10 | 10 | 10 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 164 | 245 | 258 | 330 | 329 | 317 | 295 | 350 | 429 | 425 | 523 | 453 | - | 1,076 | 1,473 | 2,018 | 2,127 | 2,500 | 2,680 | 2,921 | 3,797 | 4,784 | 5,368 | 5,085 | 6,540 | 7,138 | 7,449 | 8,302 | 8,484 | 8,816 | 9,135 |
| 買掛金 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - | - | - | 8 | - | - | - | 32 | - | - | - | 8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 流動負債合計 | 31 | 8 | 20 | 20 | 18 | 18 | 8 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 固定負債合計 | 72 | 0 | 0 | 0 | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 総負債 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 8 | - | - | - | - | 106 | 161 | 173 | 214 | 216 | 207 | 183 | 233 | 303 | 291 | 381 | 324 | 1,007 | 900 | 1,248 | 1,742 | 1,794 | 1,957 | 2,088 | 2,413 | 3,190 | 4,163 | 4,686 | 4,314 | 5,714 | 6,224 | 6,410 | 7,135 | 7,331 | 7,553 | 7,872 |
| 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 99 | 0 | 101 | 102 | 102 | 103 | 104 | 104 | 104 | 106 | 110 | 115 | 174 | 152 | 155 | 159 | 164 | 165 | 166 | 167 | 183 | 197 | 209 | 223 |
| 利益剰余金 | 58 | -85 | -85 | -85 | -86 | -87 | -88 | -88 | -89 | -90 | -90 | -90 | -90 | -90 | -90 | -90 | -90 | -1 | -1 | -1 | -1 | -2 | -2 | 25 | 52 | 38 | 35 | 27 | 29 | 38 | 41 | 48 | 56 | 62 | 66 | 90 | 113 | 156 | 208 | 260 | 464 | 516 | 426 | 502 | 529 | 592 | 647 | 691 | 807 | 903 | 998 | 1,033 | 1,147 | 1,226 |
| 株主資本 | 222 | 80 | 21 | 21 | 20 | 19 | 2 | 1 | 1 | 0 | -1 | -1 | -1 | -1 | -1 | -1 | -1 | -1 | 0 | -1 | -1 | -1 | -1 | 58 | 83 | 85 | 115 | 112 | 109 | 111 | 117 | 125 | 134 | 142 | 131 | 164 | 175 | 225 | 275 | 332 | 543 | 592 | 514 | 615 | 629 | 690 | 777 | 825 | 914 | 1,039 | 1,166 | 1,152 | 1,263 | 1,262 |