Intangible Assets	12 Months Ended
Intangible Assets	Dec. 31, 2021
Disclosure of intangible assets [abstract]
Disclosure of intangible assets [text block]	12 Intangible assets (in USD million) Exploration expenses Acquisition costs - oil and gas prospects Goodwill Other Total Cost at 31 December 2020 2,261 3,932 1,481 831 8,505 Additions through business combinations 0 0 61 55 116 Additions 191 36 0 35 262 Disposals at cost (22) 1 (3) (29) (53) Transfers (432) (1,137) 0 (161) (1,730) Expensed exploration expenditures previously capitalised (19) (152) 0 0 (171) Impairment of goodwill 0 0 (1) 0 (1) Foreign currency translation effects (21) (10) (70) (10) (111) Cost at 31 December 2021 1,958 2,670 1,467 722 6,816 Accumulated depreciation and impairment losses at 31 December 2020 (356) (356) Amortisation and impairments for the year (24) (24) Amortisation and impairment losses disposed intangible assets 13 13 Foreign currency translation effects 3 3 Accumulated depreciation and impairment losses at 31 December 2021 (364) (364) Carrying amount at 31 December 2021 1,958 2,670 1,467 358 6,452 (in USD million) Exploration expenses Acquisition costs - oil and gas prospects Goodwill Other Total Cost at 31 December 2019 3,014 5,599 1,458 962 11,033 Additions 401 67 0 24 492 Disposals at cost (7) 0 0 0 (8) Transfers (16) (73) 0 0 (89) Assets reclassified to held for sale 0 (339) 0 (160) (499) Expensed exploration expenditures previously capitalised (1,169) (1,337) 0 0 (2,506) Impairment of goodwill 0 0 (42) 0 (42) Foreign currency translation effects 38 16 64 6 123 Cost at 31 December 2020 2,261 3,932 1,481 831 8,505 Accumulated depreciation and impairment losses at 31 December 2019 (295) (295) Amortisation and impairments for the year (35) (35) Accumulated depreciation and impairment assets classified as held for sale (17) (17) Amortisation and impairment losses disposed intangible assets (6) (6) Foreign currency translation effects (3) (3) Accumulated depreciation and impairment losses at 31 December 2020 (356) (356) Carrying amount at 31 December 2020 2,261 3,932 1,481 475 8,149 The useful lives of intangible assets are assessed to be either finite or indefinite. Intangible assets with finite useful lives are amortized systematically over their estimated economic lives, ranging between 3 - 20 years. Included in the goodwill of USD 1.467 billion technical goodwill relate to business acquisitions in 2019, USD 0.615 billion in the Exploration & Production Norway area and USD 0.435 billion the Marketing Midstream & Processing area. In 2021, Acquisition cost - oil and gas prospects were impacted by net impairment of USD 152 million. Impairments of acquisition cost related to exploration activities of USD 154 million were mainly related to dry wells and uncommercial discoveries in South America and Gulf of Mexico. Net reversal of 2 million related to Exploration and production USA – onshore. In 2020, Acquisition cost - oil and gas prospects were impacted by net impairment of signature bonuses and acquisition costs totaling USD 680 million related to unconventional onshore assets in Exploration & Production USA. Impairment of acquisition costs related to exploration activities of USD 657 million was primarily related to dry wells and uncommercial discoveries in Exploration & Production International. See note 11 Property, plant and equipment regarding sensitivities. In 2020, Equinor decided to impair capitalised well costs of USD 982 million related to Equinor’s Block 2 exploration license in Tanzania. The impairment was presented in the line-item Exploration expenses. Impairment losses and reversals of impairment losses are presented as Exploration expenses and Depreciation, amortisation and net impairment losses on the basis of their nature as exploration assets (intangible assets) and other intangible assets, respectively. The impairment losses and reversal of impairment losses are based on recoverable amount estimates triggered by changes in reserve estimates, cost estimates and market conditions. See note 11 Property, plant and equipment for more information on the basis for impairment assessments. The table below shows the aging of capitalised exploration expenditures. (in USD million) 2021 2020 Less than one year 234 604 Between one and five years 692 623 More than five years 1,033 1,033 Total capitalised exploration expenditures 1,958 2,261 The table below shows the components of the exploration expenses. Full year (in USD million) 2021 2020 2019 Exploration expenditures 1,027 1,371 1,584 Expensed exploration expenditures previously capitalised 171 2,506 777 Capitalised exploration (194) (394) (507) Exploration expenses 1,004 3,483 1,854