| （単位：百万ドル） | 4Q11 | 1Q12 | 2Q12 | 3Q12 | 4Q12 | 1Q13 | 2Q13 | 3Q13 | 4Q13 | 1Q14 | 2Q14 | 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 | 1Q23 | 2Q23 | 3Q23 | 4Q23 | 1Q24 | 2Q24 | 3Q24 | 4Q24 | 1Q25 | 2Q25 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 現金同等物 | 15 | 9 | 11 | 26 | 10 | 11 | 12 | 13 | 17 | 8 | 13 | 8 | 10 | 7 | 22 | 9 | 18 | 37 | 20 | 15 | 21 | 14 | 10 | 12 | 22 | 14 | 17 | 13 | 15 | 33 | 48 | 7 | 21 | 19 | 29 | 61 | 61 | 52 | 43 | 7 | 25 | 22 | 72 | 51 | 49 | 49 | 25 | 58 | 72 |
| 有価証券 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 9 | 9 | 8 | 10 | 12 | 11 | 15 | 15 | 17 | 19 |
| 現金 + 有価証券 | 15 | 9 | 11 | 26 | 10 | 11 | 12 | 13 | 17 | 8 | 13 | 8 | 10 | 7 | 22 | 9 | 18 | 37 | 20 | 15 | 21 | 14 | 10 | 12 | 22 | 14 | 17 | 13 | 15 | 33 | 48 | 7 | 21 | 19 | 29 | 61 | 61 | 52 | 43 | 17 | 34 | 31 | 82 | 63 | 61 | 64 | 41 | 75 | 92 |
| 有形固定資産 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 |
| 総資産 | 524 | 526 | 520 | 527 | 508 | 514 | 520 | 532 | 537 | 536 | 536 | 533 | 530 | 524 | 540 | 540 | 550 | 571 | 562 | 568 | 584 | 587 | 582 | 587 | 603 | 596 | 607 | 616 | 623 | 643 | 664 | 632 | 630 | 640 | 658 | 758 | 753 | 741 | 758 | 821 | 839 | 857 | 907 | 916 | 928 | 944 | 951 | 1,008 | 1,021 |
| 長期借入金 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 28 | 30 | 33 |
| 総負債 | 479 | 481 | 475 | 483 | 463 | 469 | 475 | 487 | 492 | 491 | 491 | 487 | 484 | 478 | 493 | 494 | 503 | 524 | 515 | 520 | 536 | 539 | 534 | 538 | 553 | 546 | 557 | 565 | 572 | 591 | 611 | 578 | 575 | 585 | 602 | 702 | 697 | 683 | 699 | 721 | 738 | 754 | 802 | 810 | 820 | 835 | 841 | 896 | 907 |
| 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 63 | 62 | 63 | 63 | 63 | 63 | 63 | 63 |
| 利益剰余金 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 25 | 25 | 26 | 26 | 27 | 27 | 28 | 29 | 30 | 30 | 31 | 31 | 32 | 33 | 34 | 36 | 46 | 48 | 50 | 52 | 53 | 55 | 56 | 58 | 60 | 62 |
| 株主資本 | 44 | 44 | 44 | 44 | 45 | 45 | 44 | 44 | 45 | 45 | 45 | 45 | 45 | 46 | 46 | 46 | 46 | 46 | 47 | 47 | 47 | 47 | 48 | 48 | 49 | 49 | 50 | 50 | 51 | 52 | 53 | 54 | 54 | 55 | 55 | 56 | 56 | 58 | 59 | 99 | 101 | 102 | 104 | 106 | 107 | 109 | 110 | 111 | 114 |
| 有利子負債合計 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 28 | 30 | 33 |
| 純有利子負債 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | -13 | -46 | -59 |
| DEレシオ（％） | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 25.87 | 27.24 | 29.68 |