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Intangible Assets | 12 Months Ended
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Dec. 31, 2019
Disclosure of detailed information about intangible assets [abstract] |
Disclosure of intangible assets [text block] | 11 Intangible assets
(in USD million) | Exploration expenses | Acquisition costs - oil and gas prospects | Goodwill | Other | Total
Cost at 31 December 2018 | 2,685 | 5,854 | 565 | 797 | 9,901
Additions through business combinations | 0 | 0 | 1,070 | 10 | 1,080
Additions | 515 | 900 | 0 | 155 | 1,571
Disposals at cost | (7) | (361) | 0 | (0) | (367)
Transfers | (71) | (143) | 0 | 0 | (213)
Expensed exploration expenditures previously capitalised | (120) | (657) | 0 | 0 | (777)
Impairment of goodwill | 0 | 0 | (164) | 0 | (164)
Effect of changes in foreign exchange | 11 | 5 | (12) | (1) | 3
Cost at 31 December 2019 | 3,014 | 5,599 | 1,458 | 962 | 11,033
Accumulated depreciation and impairment losses at 31 December 2018 |  |  |  | (229) | (229)
Amortisation and impairments for the year |  |  |  | (60) | (60)
Amortisation and impairment losses disposed intangible assets |  |  |  | (6) | (6)
Effect of changes in foreign exchange |  |  |  | 1 | 1
Accumulated depreciation and impairment losses at 31 December 2019 |  |  |  | (295) | (295)
Carrying amount at 31 December 2019 | 3,014 | 5,599 | 1,458 | 667 | 10,738
(in USD million) | Exploration expenses | Acquisition costs - oil and gas prospects | Goodwill | Other | Total
Cost at 31 December 2017 | 2,715 | 5,363 | 339 | 419 | 8,836
Additions through business combinations | 0 | 116 | 265 | 392 | 773
Additions | 392 | 917 | 0 | (7) | 1,302
Disposals at cost | (272) | (89) | 0 | (4) | (364)
Transfers | (13) | (148) | 0 | 0 | (161)
Expensed exploration expenditures previously capitalised | (68) | (289) | 0 | 0 | (357)
Effect of changes in foreign exchange | (70) | (17) | (39) | (2) | (128)
Cost at 31 December 2018 | 2,685 | 5,854 | 565 | 797 | 9,901
Accumulated depreciation and impairment losses at 31 December 2017 |  |  |  | (215) | (215)
Amortisation and impairments for the year |  |  |  | (13) | (13)
Amortisation and impairment losses disposed intangible assets |  |  |  | (2) | (2)
Effect of changes in foreign exchange |  |  |  | 1 | 1
Accumulated depreciation and impairment losses at 31 December 2018 |  |  |  | (229) | (229)
Carrying amount at 31 December 2018 | 2,685 | 5,854 | 565 | 568 | 9,672
The useful lives of intangible assets are assessed to be either finite or indefinite. Intangible assets with finite useful lives are amortised systematically over their estimated economic lives, ranging between 10-20 years. For additions through business combinations, see note 4 Acquisitions and disposals. During 2019, Acquisition costs-oil and gas prospects were impacted by net impairment of signature bonuses and acquisition costs totalling USD 608 million related to North A merica – unconventional assets and impairment of acquisition costs related to exploration activities of USD 49 million primarily as a result from dry wells and uncommercial discoveries in Europe and Asia and Sub Sahara areas. In 2018, Acquisition costs-oil and gas prospects were impacted by net impairment of signature bonuses and acquisition costs totalling USD 237 million related to North America – unconventional assets, and impairment of acquisition costs related to exploration activities of USD 52 millio n primarily as a result from dry wells and uncommercial discoveries in South America, North America - conventional offshore US Gulf of Mexico and E&P Norway. During 2019, Other intangible assets were impacted by impairment losses of USD 41 million. Equino r’s Block 2 Exploration Licen s e in Tanzania was formally due to expire in June 2018, but based on communication with the applicable Tanzanian authorities, continues to be in operation while the process related to the grant of a new exploration licen s e to t he existing licensees for the block is ongoing. The Block 2 asset remains capitalised within Intangible assets in the E&P International segment as of 31 December 201 9. 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 re versal of impairment losses are based on recoverable amount estimates triggered by changes in reserve estimates, cost estimates and market conditions. See note 10 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) | 2019 | 2018
Less than one year | 1,274 | 392
Between one and five years | 1,056 | 1,406
More than five years | 684 | 887
Total | 3,014 | 2,685
The table below shows the components of the exploration expenses.
| Full year
(in USD million) | 2019 | 2018 | 2017
Exploration expenditures | 1,584 | 1,438 | 1,234
Expensed exploration expenditures previously capitalised | 777 | 357 | (8)
Capitalised exploration | (507) | (390) | (167)
Exploration expenses | 1,854 | 1,405 | 1,059

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- Definition The entire disclosure for intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2019-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2019-en-r&doctype=Standard&dita_xref=IAS38_g118-128_TI -URIDate 2019-03-27 + Details
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