| 一般旅客自動車運送事業営業利益又は一般旅客自動車運送事業営業損失(△) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 一般旅客自動車運送事業営業利益又は一般旅客自動車運送事業営業損失(△)、鉄道事業 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 一般旅客自動車運送事業営業利益 | ja | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| 一般旅客自動車運送事業営業損失(△) | ja | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| Operating profit (loss) - general passenger automobile traffic | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Operating profit (loss) - general passenger automobile traffic - OE - automobile - RWY | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Operating profit - general passenger automobile traffic | en | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| Operating loss - general passenger automobile traffic | en | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |