| （単位：%） | 1Q10 | 2Q10 | 3Q10 | 4Q10 | 1Q11 | 2Q11 | 3Q11 | 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 | 3Q21 | 4Q21 | 1Q22 | 2Q22 | 3Q22 | 4Q22 | 1Q23 | 2Q23 | 3Q23 | 4Q23 | 1Q24 | 2Q24 | 3Q24 | 4Q24 | 1Q25 | 2Q25 | 3Q25 | 4Q25 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 売上高 | 883 | 862 | 875 | 913 | 867 | 926 | 928 | 925 | 912 | 875 | 877 | 843 | 815 | 836 | 855 | 846 | 812 | 811 | 809 | 802 | - | - | - | - | - | - | - | - | 960 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 売上成長率（％） | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||||||||||||||||
| 営業費用 | 2,460 | 2,332 | 2,611 | 2,803 | 2,697 | 2,816 | 2,771 | 2,828 | 2,756 | 3,047 | 2,705 | 2,825 | 2,828 | 2,822 | 2,779 | 2,877 | 2,739 | 2,946 | 2,968 | 3,524 | - | - | - | - | - | - | - | - | 2,642 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 経常（税引前）利益 | 884 | 1,006 | 834 | 970 | 949 | 1,034 | 945 | 689 | 885 | 589 | 975 | 853 | 809 | 1,206 | 986 | 711 | 926 | 811 | 1,662 | 164 | - | - | - | - | - | - | - | - | 1,206 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 経常（税引前）利益率（％） | 100.1 | 116.7 | 95.3 | 106.2 | 109.5 | 111.7 | 101.8 | 74.5 | 97.0 | 67.3 | 111.2 | 101.2 | 99.3 | 144.3 | 115.3 | 84.0 | 114.0 | 100 | 205.4 | 20.4 | - | - | - | - | - | - | - | - | 125.6 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 法人税等合計 | 258 | 304 | 220 | 265 | 279 | 277 | 281 | 211 | 254 | 93 | 225 | 207 | 1,046 | 321 | -2 | 155 | 232 | 217 | 556 | -93 | - | - | - | - | - | - | - | - | 269 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 実効税率（％） | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||
| 純利益 | 584 | 692 | 622 | 694 | 670 | 757 | 664 | 478 | 631 | 496 | 750 | 646 | -237 | 885 | 988 | 556 | 694 | 594 | 1,106 | 257 | 869 | 889 | 833 | 696 | 817 | 875 | 993 | 872 | 937 | 976 | 1,020 | 1,181 | 1,171 | 1,108 | 1,114 | 881 | 956 | 1,021 | 1,041 | 1,449 | 980 | 965 | 944 | 755 | 932 | 1,027 | 947 | 869 | 773 | 869 | 388 | 543 | 976 | 1,068 | 1,041 | 205 | 1,027 | 1,170 | 1,189 | 1,157 | 1,222 | 1,435 | 1,457 | 1,469 |
| 純利益率（％） | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||
| 一株あたり利益 | 0.46 | 0.54 | 0.51 | 0.55 | 0.5 | 0.59 | 0.53 | 0.42 | 0.52 | 0.39 | 0.61 | 0.53 | -0.23 | 0.71 | 0.83 | 0.44 | 0.57 | 0.48 | 0.93 | 0.19 | - | - | - | - | - | - | - | - | 0.83 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 希薄化後一株あたり利益 | 0.46 | 0.54 | 0.51 | 0.54 | 0.5 | 0.59 | 0.53 | 0.42 | 0.52 | 0.39 | 0.61 | 0.52 | -0.23 | 0.71 | 0.82 | 0.44 | 0.57 | 0.48 | 0.93 | 0.18 | - | - | - | - | - | - | - | - | 0.83 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 配当性向（%） | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |||||
| 一株あたり配当金 | 0.09 | 0.09 | 0.09 | 0.09 | 0.09 | 0.13 | 0.13 | 0.13 | 0.13 | 0.13 | 0.13 | 0.13 | 0.13 | 0.15 | 0.15 | 0.15 | 0.15 | 0.17 | 0.17 | 0.17 | 0.17 | 0.17 | 0.17 | 0.17 | 0.17 | 0.17 | 0.19 | 0.19 | 0.19 | 0.19 | 0.24 | 0.24 | 0.24 | 0.24 | 0.28 | 0.28 | 0.28 | 0.28 | 0.31 | 0.31 | 0.31 | 0.31 | 0.31 | 0.31 | 0.31 | 0.31 | 0.34 | 0.34 | 0.34 | 0.34 | 0.37 | 0.37 | 0.37 | 0.37 | 0.42 | 0.42 | 0.42 | 0.42 | 0.47 | 0.47 | 0.47 | 0.47 | 0.53 | 0.53 |