| (単位:十億円) | 4Q11 | 4Q12 | 4Q13 | 4Q14 | 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 | 4Q24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 現金同等物 | 773 | 667 | 789 | 845 | 581 | 634 | 581 | 569 | 534 | 630 | 655 | 694 | 647 | 722 | 601 | 637 | 535 | 521 | 441 | 407 | 448 | 413 | 440 | 500 | 500 | 408 | 483 | 524 | 482 | 401 | 432 | 454 | 465 | 362 | 478 | 542 | 521 | 401 | 510 | 502 |
| 有価証券 | - | - | - | 55 | - | 18 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 流動資産合計 | - | - | - | 1,025 | - | 872 | - | - | - | 950 | - | - | - | 911 | - | - | - | 790 | - | - | - | 662 | - | - | - | 612 | - | - | - | 547 | - | - | - | 666 | - | - | - | 671 | - | 737 |
| 有形固定資産 | - | - | - | 667 | - | 659 | - | - | - | 647 | - | - | - | 612 | - | - | - | 598 | - | - | - | 590 | - | - | - | 563 | - | - | - | 553 | - | - | - | 538 | - | - | - | 553 | - | 568 |
| 投資有価証券 | - | - | - | 34 | - | 35 | - | - | - | 36 | - | - | - | 10 | - | - | - | 5 | - | - | - | 8 | - | - | - | 10 | - | - | - | 13 | - | - | - | 12 | - | - | - | 14 | - | 11 |
| 固定資産合計 | - | - | - | 1,291 | - | 1,566 | - | - | - | 2,227 | - | - | - | 2,176 | - | - | - | 2,208 | - | - | - | 2,266 | - | - | - | 2,243 | - | - | - | 2,272 | - | - | - | 2,249 | - | - | - | 2,267 | - | 2,290 |
| 総資産 | 3,931 | 3,956 | 4,243 | 4,461 | 4,399 | 4,428 | 4,839 | 4,615 | 4,530 | 5,139 | 5,114 | 5,210 | 5,186 | 5,198 | 4,978 | 5,012 | 5,003 | 4,899 | 4,897 | 4,815 | 4,800 | 4,768 | 4,677 | 4,671 | 4,702 | 4,626 | 4,734 | 4,747 | 4,752 | 4,751 | 4,945 | 5,154 | 5,301 | 5,096 | 5,259 | 5,571 | 5,619 | 5,417 | 5,741 | 5,766 |
| 短期借入金 | - | - | - | 365 | - | 462 | - | - | - | 602 | - | - | - | 620 | - | - | - | 656 | - | - | - | 804 | - | - | - | 1,196 | - | - | - | 825 | - | - | - | 1,067 | - | - | - | 884 | - | 541 |
| 流動負債合計 | - | - | - | 829 | - | 903 | - | - | - | 1,057 | - | - | - | 1,109 | - | - | - | 1,123 | - | - | - | 1,187 | - | - | - | 1,600 | - | - | - | 1,248 | - | - | - | 1,535 | - | - | - | 1,323 | - | 1,094 |
| 長期借入金 | - | - | - | - | - | - | - | - | - | 610 | - | - | - | 490 | - | - | - | 360 | - | - | - | 354 | - | - | - | - | - | - | - | 174 | - | - | - | - | - | - | - | - | - | 200 |
| 固定負債合計 | - | - | - | 40 | - | 51 | - | - | - | 667 | - | - | - | 517 | - | - | - | 385 | - | - | - | 382 | - | - | - | 29 | - | - | - | 204 | - | - | - | 38 | - | - | - | 24 | - | 217 |
| 総負債 | - | - | - | 868 | - | 954 | - | - | - | 1,724 | - | - | - | 1,626 | - | - | - | 1,508 | - | - | - | 1,570 | - | - | - | 1,629 | - | - | - | 1,452 | - | - | - | 1,573 | - | - | - | 1,347 | - | 1,311 |
| 資本金及び資本剰余金 | - | - | - | 481 | - | 481 | - | - | - | 481 | - | - | - | 481 | - | - | - | 481 | - | - | - | 481 | - | - | - | 481 | - | - | - | 481 | - | - | - | 481 | - | - | - | 481 | - | 481 |
| 利益剰余金 | - | - | - | 1,969 | - | 2,003 | - | - | - | 1,973 | - | - | - | 2,035 | - | - | - | 2,065 | - | - | - | 1,984 | - | - | - | 1,900 | - | - | - | 2,039 | - | - | - | 2,113 | - | - | - | 2,459 | - | 2,787 |
| 株主資本 | - | - | 1,567 | 1,447 | 3,118 | 1,484 | 3,033 | 2,909 | 2,827 | 1,453 | 2,927 | 2,990 | 3,011 | 1,460 | 2,964 | 3,052 | 3,072 | 1,489 | 2,954 | 2,900 | 2,811 | 1,359 | 2,721 | 2,729 | 2,705 | 1,226 | 2,883 | 2,961 | 2,959 | 1,368 | 3,198 | 3,364 | 3,354 | 1,341 | 3,381 | 3,545 | 3,536 | 1,592 | 3,679 | 1,716 |