| Diluted earnings (loss) per share from continuing operations, including net movement in regulatory deferral account balances and net movement in related deferred tax | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Diluted earnings (loss) per share from continuing operations that include the net movement in regulatory deferral account balances and the net movement in related deferred tax. [Refer: Diluted earnings (loss) per share; Net movement in regulatory deferral account balances related to profit or loss and net movement in related deferred tax; Continuing operations [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Udvandet indtjening (tab) pr. aktie fra fortsættende aktiviteter, herunder nettobevægelse i saldi for regulatoriske aktiver og forpligtelser og nettobevægelse i forbunden udskudt skat | da | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Udvandet indtjening (tab) pr. aktie fra fortsættende aktiviteter, der omfatter nettobevægelsen i saldi for regulatoriske aktiver og forpligtelser og nettobevægelsen i forbunden udskudt skat. [Reference: udvandet indtjening (tab) pr. aktie, nettobevægelse i saldi for regulatoriske aktiver og forpligtelser vedrørende resultatet og nettobevægelse i forbunden udskudt skat, fortsættende aktiviteter [member]] | da | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |