| Increase in cash and cash equivalents resulting from merger with unconsolidated subsidiaries | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Increase in cash and cash equivalents resulting from merger with unconsolidated subsidiaries-CCE | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 非連結子会社との合併に伴う現金及び現金同等物の増加額 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 非連結子会社との合併に伴う現金及び現金同等物の増加額 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |