| 
				 年/月 
				 | 
			1992.3 (平4.3)  | 
			1993.3 (平5.3)  | 
			1994.3 (平6.3)  | 
			1995.3 (平7.3)  | 
			1996.3 (平8.3)  | 
			1997.3 (平9.3)  | 
			1998.3 (平10.3)  | 
			1999.3 (平11.3)  | 
			2000.3 (平12.3)  | 
			2001.3 (平13.3)  | 
			2002.3 (平14.3)  | 
			2003.3 (平15.3)  | 
			2004.3 (平16.3)  | 
			2005.3 (平17.3)  | 
			2006.3 (平18.3)  | 
			2007.3 (平19.3)  | 
			2008.3 (平20.3)  | 
			2009.3 (平21.3)  | 
			2010.3 (平22.3)  | 
			2011.3 (平23.3)  | 
			2012.3 (平24.3)  | 
			2013.3 (平25.3)  | 
			2014.3 (平26.3)  | 
			2015.3 (平27.3)  | 
			2016.3 (平28.3)  | 
			2017.3 (平29.3)  | 
			2018.3 (平30.3)  | 
			2019.3 (令元.3)  | 
			2020.3 (令2.3)  | 
			2021.3 (令3.3)  | 
		
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 
				 (負債の部) 
				 | 
			||||||||||||||||||||||||||||||
| 
				 流動負債 
				 | 
			16,479 | 18,128 | 17,873 | 15,559 | 17,057 | 16,820 | 15,547 | 13,414 | 12,616 | 12,991 | 12,772 | 12,536 | 10,404 | 10,233 | 9,823 | 10,003 | 8,534 | 8,476 | 7,131 | 6,540 | 7,215 | 7,084 | 8,169 | 8,308 | 8,354 | 8,321 | 8,367 | 8,523 | 8,583 | 7,974 | 
| 
				 支払手形 
				 | 
			2,655 | 2,949 | 2,690 | 2,078 | 1,983 | 1,782 | 1,622 | 1,427 | 1,364 | 1,709 | 1,572 | 1,236 | 794 | 819 | 704 | 693 | 540 | 386 | 366 | 237 | 290 | 271 | 247 | 234 | 223 | 247 | 175 | 149 | 103 | 113 | 
| 
				 電子記録債権 
				 | 
			- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 779 | 1,211 | 1,411 | 1,294 | 1,214 | 1,194 | 1,035 | |||||||
| 
				 工事未払金 
				 | 
			2,408 | 2,364 | 2,038 | 1,889 | 2,586 | 3,039 | 2,396 | 2,401 | 2,204 | 2,972 | 3,047 | 3,379 | 3,096 | 3,651 | 3,821 | 4,298 | 3,704 | 3,680 | 3,458 | 3,400 | 4,262 | 4,144 | 4,503 | 3,937 | 3,292 | 3,255 | 3,511 | 4,027 | 3,888 | 3,383 | 
| 
				 不動産事業等未払金 
				 | 
			11 | 8 | 8 | 11 | 6 | 5 | 16 | 10 | 9 | 13 | 13 | 8 | 5 | 7 | 8 | 11 | 10 | 8 | 10 | 8 | 10 | 10 | 12 | 21 | 13 | 14 | 10 | 9 | 11 | 8 | 
| 
				 短期借入金 
				 | 
			2,183 | 2,365 | 2,463 | 2,571 | 2,766 | 2,603 | 2,622 | 2,380 | 2,083 | 1,758 | 1,617 | 1,803 | 1,427 | 916 | 561 | 457 | 469 | 748 | 463 | 718 | 825 | 819 | 1,092 | 846 | 1,125 | 577 | 603 | 367 | 397 | 403 | 
| 
				 コマーシャル・ペーパー 
				 | 
			- | 470 | 761 | 761 | 810 | 500 | 700 | 600 | - | - | - | 100 | - | - | 100 | - | 310 | 660 | 500 | 400 | - | 50 | 220 | 180 | - | - | - | - | - | - | 
| 
				 1年内償還予定の社債 
				 | 
			- | - | - | - | - | - | - | - | - | 100 | 100 | - | 200 | - | 100 | 100 | 100 | 200 | 100 | 100 | - | 100 | - | 250 | 100 | 250 | 100 | 100 | - | - | 
| 
				 一年以内償還の転換社債 
				 | 
			- | - | - | - | - | 100 | 14 | - | 99 | 14 | - | 99 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 
| 
				 一年以内償還の新株引受権付社債 
				 | 
			215 | - | 510 | 475 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 
| 
				 リース債務 
				 | 
			- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 
| 
				 未払金 
				 | 
			21 | 10 | 87 | 57 | 12 | 67 | 14 | 56 | 49 | 85 | 196 | 255 | 69 | 71 | 66 | 83 | 87 | 55 | 83 | 114 | 150 | 104 | 100 | 103 | 88 | 119 | 172 | 55 | 188 | 35 | 
| 
				 未払費用 
				 | 
			274 | 296 | 287 | 259 | 216 | 218 | 203 | 192 | 166 | 174 | 154 | 123 | 130 | 136 | 138 | 134 | 127 | 123 | 85 | 117 | 122 | 135 | 114 | 118 | 127 | 136 | 181 | 184 | 178 | 163 | 
| 
				 未払法人税等 
				 | 
			219 | 172 | 67 | 185 | 114 | 88 | 69 | 82 | 126 | 83 | 24 | 1 | 74 | 145 | 145 | 49 | 107 | 3 | 3 | 8 | 5 | 11 | 1 | 11 | 141 | 275 | 272 | 238 | 245 | 116 | 
| 
				 未払事業税等 
				 | 
			62 | 48 | 18 | 54 | 37 | 31 | 21 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 
| 
				 未成工事受入金 
				 | 
			7,144 | 8,349 | 7,675 | 6,367 | 7,564 | 7,356 | 6,918 | 5,381 | 5,500 | 4,937 | 4,589 | 4,182 | 3,358 | 3,201 | 2,888 | 3,077 | 1,939 | 1,497 | 847 | 555 | 554 | 531 | 922 | 775 | 969 | 731 | 703 | 794 | 729 | 1,049 | 
| 
				 不動産事業等受入金 
				 | 
			40 | 63 | 64 | 72 | 50 | 20 | 25 | 38 | 32 | 23 | 29 | 23 | 21 | 66 | 131 | 32 | 28 | 26 | 24 | 27 | 25 | 27 | 17 | 17 | 9 | 13 | 18 | 19 | 12 | 32 | 
| 
				 預り金 
				 | 
			672 | 561 | 675 | 442 | 556 | 641 | 553 | 475 | 632 | 774 | 1,089 | 981 | 879 | 886 | 800 | 690 | 683 | 639 | 667 | 498 | 643 | 563 | 621 | 679 | 687 | 958 | 952 | 1,008 | 1,157 | 1,191 | 
| 
				 前受収益 
				 | 
			25 | 11 | 14 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 
| 
				 完成工事補償引当金 
				 | 
			14 | 14 | 15 | 13 | 11 | 14 | 14 | 11 | 6 | 8 | 8 | 12 | 11 | 14 | 12 | 17 | 15 | 13 | 15 | 18 | 24 | 26 | 21 | 19 | 19 | 26 | 37 | 39 | 38 | 25 | 
| 
				 工事損失引当金 
				 | 
			- | - | - | - | - | - | - | - | - | - | - | - | - | - | 43 | 74 | 140 | 176 | 245 | 86 | 68 | 56 | 67 | 105 | 110 | 64 | 37 | 11 | 118 | 132 | 
| 
				 独占禁止法関連損失引当金 
				 | 
			- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 41 | 41 | 41 | - | |||||||
| 
				 従業員預り金 
				 | 
			372 | 426 | 472 | 300 | 324 | 335 | 338 | 331 | 320 | 315 | 315 | 302 | 291 | 279 | 268 | 257 | 248 | 241 | 231 | 223 | 218 | 218 | 219 | 218 | 222 | 229 | 246 | 255 | 264 | 272 | 
| 
				 その他 
				 | 
			155 | 16 | 20 | 14 | 16 | 15 | 14 | 26 | 19 | 19 | 14 | 26 | 41 | 35 | 29 | 23 | 18 | 15 | 27 | 23 | 11 | 12 | 7 | 9 | 10 | 8 | 7 | 8 | 10 | 9 | 
| 
				 | 
			||||||||||||||||||||||||||||||
| 
				 固定負債 
				 | 
			2,423 | 2,527 | 2,135 | 1,755 | 1,812 | 1,520 | 1,498 | 1,762 | 2,000 | 2,462 | 2,123 | 1,945 | 1,832 | 2,089 | 2,577 | 2,637 | 2,201 | 1,999 | 2,425 | 2,458 | 2,343 | 2,146 | 2,298 | 2,461 | 1,816 | 1,801 | 1,954 | 2,112 | 1,901 | 2,133 | 
| 
				 社債 
				 | 
			90 | 90 | - | - | 200 | 200 | 200 | 200 | 500 | 400 | 300 | 400 | 500 | 800 | 700 | 600 | 500 | 300 | 200 | 500 | 600 | 600 | 800 | 650 | 550 | 300 | 200 | 300 | 400 | 400 | 
| 
				 転換社債 
				 | 
			328 | 328 | 328 | 328 | 328 | 228 | 213 | 213 | 114 | 99 | 99 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 
| 
				 長期借入金 
				 | 
			622 | 682 | 907 | 934 | 802 | 608 | 606 | 861 | 873 | 736 | 575 | 347 | 324 | 259 | 177 | 96 | 409 | 658 | 1,128 | 846 | 823 | 611 | 531 | 513 | 146 | 311 | 474 | 732 | 694 | 800 | 
| 
				 新株引受権付社債 
				 | 
			986 | 986 | 475 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 
| 
				 リース債務 
				 | 
			- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 
| 
				 繰延税金負債 
				 | 
			- | - | - | - | - | - | - | - | - | 400 | - | - | - | - | 645 | 891 | 241 | - | - | - | - | 38 | 112 | 542 | 423 | 491 | 568 | 367 | 120 | 256 | 
| 
				 再評価に係る繰延税金負債 
				 | 
			- | - | - | - | - | - | - | - | 32 | 34 | 64 | 204 | 211 | 217 | 255 | 210 | 213 | 220 | 271 | 285 | 246 | 235 | 222 | 184 | 168 | 166 | 162 | 156 | 155 | 153 | 
| 
				 退職給付引当金 
				 | 
			- | - | - | - | - | - | - | - | - | 678 | 636 | 615 | 593 | 622 | 652 | 635 | 613 | 600 | 594 | 581 | 562 | 549 | 520 | 473 | 454 | 457 | 465 | 463 | 452 | 446 | 
| 
				 退職給与引当金 
				 | 
			269 | 292 | 308 | 351 | 357 | 368 | 367 | 371 | 368 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 
| 
				 役員退職慰労引当金 
				 | 
			- | - | - | - | - | - | - | - | - | 25 | 22 | 24 | 15 | 17 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 
| 
				 役員株式給付引当金 
				 | 
			- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 3 | 2 | 3 | 4 | 4 | |||||||
| 
				 不動産事業等損失引当金 
				 | 
			- | - | - | - | - | - | - | - | - | - | 327 | 259 | 103 | 108 | 74 | 119 | 120 | 120 | 159 | 164 | 33 | 42 | 55 | 11 | 10 | 9 | 9 | 9 | - | - | 
| 
				 関係会社事業損失引当金 
				 | 
			- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 7 | 6 | 23 | 28 | 27 | 20 | 21 | |||||||
| 
				 環境対策引当金 
				 | 
			- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4 | 4 | 3 | 10 | 9 | 9 | 9 | 9 | 9 | 8 | 5 | 2 | 2 | 2 | - | 
| 
				 長期納税引当金 
				 | 
			5 | 10 | 7 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 
| 
				 資産除去債務 
				 | 
			- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 
| 
				 その他 
				 | 
			121 | 136 | 107 | 139 | 123 | 114 | 110 | 115 | 112 | 87 | 97 | 93 | 84 | 63 | 71 | 79 | 98 | 95 | 61 | 71 | 67 | 59 | 46 | 68 | 46 | 31 | 39 | 49 | 51 | 51 | 
| 
				 | 
			||||||||||||||||||||||||||||||
| 
				 負債合計 
				 | 
			18,903 | 20,655 | 20,008 | 17,315 | 18,870 | 18,340 | 17,046 | 15,177 | 14,617 | 15,454 | 14,895 | 14,482 | 12,236 | 12,322 | 12,400 | 12,641 | 10,735 | 10,476 | 9,557 | 8,998 | 9,558 | 9,231 | 10,467 | 10,769 | 10,171 | 10,122 | 10,321 | 10,636 | 10,485 | 10,108 | 
| 
				 | 
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