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Intangible assets (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Intangible assets |  |
Net carrying amount - beginning of the year | € 2,936 | € 3,059
Additions | 284 | 237
Amortization | (287) | (275)
Impairment | (38) | (54)
Reversals | 21 | 24
Write-off | (35) | (24)
Change in the scope of consolidation | 1,835 | 77
Currency translation differences | 72 | (83)
Other changes | 11 | (25)
Net carrying amount at the end of the year | 4,799 | 2,936
Intangible assets with definite useful lives |  |
Intangible assets |  |
Net carrying amount - beginning of the year | 1,639 | 1,794
Additions | 284 | 237
Amortization | (287) | (275)
Impairment | (16) | (30)
Reversals | 21 | 24
Write-off | (35) | (24)
Change in the scope of consolidation | 237 | 7
Currency translation differences | 59 | (69)
Other changes | 11 | (25)
Net carrying amount at the end of the year | 1,913 | 1,639
Exploration rights |  |
Intangible assets |  |
Net carrying amount - beginning of the year | 888 | 1,031
Additions | 12 | 18
Amortization | (30) | (53)
Impairment |  | (23)
Reversals | 21 |
Write-off | (35) | (19)
Currency translation differences | 57 | (66)
Net carrying amount at the end of the year | 913 | 888
Industrial patents and intellectual property rights |  |
Intangible assets |  |
Net carrying amount - beginning of the year | 162 | 195
Additions | 28 | 23
Amortization | (89) | (92)
Impairment | (2) |
Write-off |  | (5)
Change in the scope of consolidation | 11 |
Other changes | 45 | 41
Net carrying amount at the end of the year | 155 | 162
Other intangible assets with definite useful lives |  |
Intangible assets |  |
Net carrying amount - beginning of the year | 589 | 568
Additions | 244 | 196
Amortization | (168) | (130)
Impairment | (14) | (7)
Reversals |  | 24
Change in the scope of consolidation | 226 | 7
Currency translation differences | 2 | (3)
Other changes | (34) | (66)
Net carrying amount at the end of the year | 845 | 589
Goodwill |  |
Intangible assets |  |
Net carrying amount - beginning of the year | 1,297 | 1,265
Impairment | (22) | (24)
Change in the scope of consolidation | 1,574 | 70
Currency translation differences | 13 | (14)
Net carrying amount at the end of the year | 2,862 | 1,297
Other intangible assets with indefinite useful lives |  |
Intangible assets |  |
Change in the scope of consolidation | 24 |
Net carrying amount at the end of the year | 24 |
Gross carrying amount | Intangible assets with definite useful lives |  |
Intangible assets |  |
Net carrying amount - beginning of the year | 7,635 |
Net carrying amount at the end of the year | 8,259 | 7,635
Gross carrying amount | Exploration rights |  |
Intangible assets |  |
Net carrying amount - beginning of the year | 1,613 |
Net carrying amount at the end of the year | 1,707 | 1,613
Gross carrying amount | Industrial patents and intellectual property rights |  |
Intangible assets |  |
Net carrying amount - beginning of the year | 1,623 |
Net carrying amount at the end of the year | 1,709 | 1,623
Gross carrying amount | Other intangible assets with definite useful lives |  |
Intangible assets |  |
Net carrying amount - beginning of the year | 4,399 |
Net carrying amount at the end of the year | 4,843 | 4,399
Accumulated depreciation, amortisation and impairment | Intangible assets with definite useful lives |  |
Intangible assets |  |
Net carrying amount - beginning of the year | (5,996) |
Net carrying amount at the end of the year | (6,346) | (5,996)
Accumulated depreciation, amortisation and impairment | Exploration rights |  |
Intangible assets |  |
Net carrying amount - beginning of the year | (725) |
Net carrying amount at the end of the year | (794) | (725)
Accumulated depreciation, amortisation and impairment | Industrial patents and intellectual property rights |  |
Intangible assets |  |
Net carrying amount - beginning of the year | (1,461) |
Net carrying amount at the end of the year | (1,554) | (1,461)
Accumulated depreciation, amortisation and impairment | Other intangible assets with definite useful lives |  |
Intangible assets |  |
Net carrying amount - beginning of the year | (3,810) |
Net carrying amount at the end of the year | € (3,998) | € (3,810)

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