http://www.hydro.com/20221231 (3854AD1E) 2021-12-31_NorskHydroASA_report XBRL Taxonomy prepared for the European Standard Electronic Format 2022-12-31 Norsk Hydro ASA http://www.hydro.com NO 2022-02-09 Norsk Hydro ASA XBRL Taxonomy for 2022-12-31 Norsk Hydro ASA XBRL report for 2022-12-31 nb