| Publisher | 経済産業省 | http://www.xbrl.org/2003/role/reference |
| Name | ガス事業会計規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2017-03-28 | http://www.xbrl.org/2003/role/reference |
| Appendix | 様式第1 | http://www.xbrl.org/2003/role/reference |
| Publisher | 金融庁 | http://www.xbrl.org/2003/role/reference |
| Name | 財務諸表等規則ガイドライン | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2017-06-30 | http://www.xbrl.org/2003/role/reference |
| Article | 54の3-1 | http://www.xbrl.org/2003/role/reference |
| Publisher | 内閣府 | http://www.xbrl.org/2003/role/reference |
| Name | 中間財務諸表等規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2015-09-04 | http://www.xbrl.org/2003/role/reference |
| Chapter | 2 | http://www.xbrl.org/2003/role/reference |
| Article | 37 | http://www.xbrl.org/2003/role/reference |
| Publisher | 内閣府 | http://www.xbrl.org/2003/role/reference |
| Name | 四半期財務諸表等規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2015-09-04 | http://www.xbrl.org/2003/role/reference |
| Chapter | 2 | http://www.xbrl.org/2003/role/reference |
| Article | 53 | http://www.xbrl.org/2003/role/reference |
| Publisher | 内閣府 | http://www.xbrl.org/2003/role/reference |
| Name | 財務諸表等規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2017-06-30 | http://www.xbrl.org/2003/role/reference |
| Chapter | 2 | http://www.xbrl.org/2003/role/reference |
| Article | 54の3 | http://www.xbrl.org/2003/role/reference |
| Publisher | 内閣府 | http://www.xbrl.org/2003/role/reference |
| Name | 四半期連結財務諸表規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2015-09-04 | http://www.xbrl.org/2003/role/reference |
| Chapter | 2 | http://www.xbrl.org/2003/role/reference |
| Article | 60 | http://www.xbrl.org/2003/role/reference |
| Publisher | 内閣府 | http://www.xbrl.org/2003/role/reference |
| Name | 中間連結財務諸表規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2015-09-04 | http://www.xbrl.org/2003/role/reference |
| Chapter | 2 | http://www.xbrl.org/2003/role/reference |
| Article | 47 | http://www.xbrl.org/2003/role/reference |
| Publisher | 内閣府 | http://www.xbrl.org/2003/role/reference |
| Name | 連結財務諸表規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2017-05-25 | http://www.xbrl.org/2003/role/reference |
| Chapter | 2 | http://www.xbrl.org/2003/role/reference |
| Article | 45の2 | http://www.xbrl.org/2003/role/reference |
| Publisher | 内閣府 | http://www.xbrl.org/2003/role/reference |
| Name | 銀行法施行規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2017-03-24 | http://www.xbrl.org/2003/role/reference |
| Appendix | 別紙様式第1号 | http://www.xbrl.org/2003/role/reference |
| Publisher | 内閣府 | http://www.xbrl.org/2003/role/reference |
| Name | 銀行法施行規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2017-03-24 | http://www.xbrl.org/2003/role/reference |
| Appendix | 別紙様式第3号 | http://www.xbrl.org/2003/role/reference |
| Publisher | 内閣府 | http://www.xbrl.org/2003/role/reference |
| Name | 銀行法施行規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2017-03-24 | http://www.xbrl.org/2003/role/reference |
| Appendix | 別紙様式第5号 | http://www.xbrl.org/2003/role/reference |
| Publisher | 内閣府 | http://www.xbrl.org/2003/role/reference |
| Name | 銀行法施行規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2017-03-24 | http://www.xbrl.org/2003/role/reference |
| Appendix | 別紙様式第5号の2 | http://www.xbrl.org/2003/role/reference |
| Publisher | 内閣府 | http://www.xbrl.org/2003/role/reference |
| Name | 銀行法施行規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2017-03-24 | http://www.xbrl.org/2003/role/reference |
| Appendix | 別紙様式第1号の2 | http://www.xbrl.org/2003/role/reference |
| Publisher | 内閣府 | http://www.xbrl.org/2003/role/reference |
| Name | 銀行法施行規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2017-03-24 | http://www.xbrl.org/2003/role/reference |
| Appendix | 別紙様式第3号の2 | http://www.xbrl.org/2003/role/reference |
| Publisher | 経済産業省 | http://www.xbrl.org/2003/role/reference |
| Name | 電気事業会計規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2017-03-31 | http://www.xbrl.org/2003/role/reference |
| Appendix | 別表第2第1表 | http://www.xbrl.org/2003/role/reference |
| IndustryAbbreviation | cte | http://www.xbrl.org/2003/role/reference |