| Increase (decrease) in net defined benefit liability (asset) | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total increase (decrease) in net defined benefit liability (asset) | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The increase (decrease) in the net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Stigning (fald) i nettoforpligtelsen (-aktivet) i ydelsesbaserede pensionsordninger | da | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Stigningen (faldet) i nettoforpligtelsen (-aktivet) i ydelsesbaserede pensionsordninger. [Reference: nettoforpligtelsen (-aktivet) i ydelsesbaserede pensionsordninger] | da | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Stigning (fald) i nettoforpligtelsen (-aktivet) i ydelsesbaserede pensionsordninger, i alt | da | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |