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Statement of Cash Flows - Summary of Adjustments to Reconcile Net Income to Cash (Detail) - SEK (kr) kr in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure Of Adjustments To Reconcile Net Income To Cash [Line Items] |  |  |
Depreciations | kr 3,674 | kr 3,602 | kr 3,587
Impairment losses | 198 | 512 | 360
Adjustments to reconcile net income to cash | 17,143 | 19,931 | 17,832
Depreciations | 2,277 | 2,387 | 2,474
Impairment losses/reversals of impairments | 0 | 47 | 75
Amortizations | 2,507 | 1,989 | 2,538
Write down of goodwill | 112 | 0 | 0
Total impairments | 313 | 137 | 55
Total depreciation, amortization and impairment losses on property, plant and equipment and intangible assets | 8,969 | 8,674 | 9,089
Taxes | 6,576 | 10,436 | 6,870
Dividends from joint ventures/associated companies | 90 | 43 | 66
Undistributed earnings in joint ventures/ associated companies | 270 | 331 | 340
Gains/losses on sales of investments and operations, intangible assets and PP&E, net | (971) | 77 | (812)
Other non-cash items | 2,209 | 370 | 2,279
Right-of-use assets [member] |  |  |
Disclosure Of Adjustments To Reconcile Net Income To Cash [Line Items] |  |  |
Adjustments to reconcile net income to cash | 2,277 | 2,434 | 2,549
Intangible asset and goodwill [member] |  |  |
Disclosure Of Adjustments To Reconcile Net Income To Cash [Line Items] |  |  |
Adjustments to reconcile net income to cash | 2,820 | 2,126 | 2,593
Property, plant and equipments [member] |  |  |
Disclosure Of Adjustments To Reconcile Net Income To Cash [Line Items] |  |  |
Adjustments to reconcile net income to cash | 3,872 | 4,114 | 3,947
Capitalized development expenditure [member] |  |  |
Disclosure Of Adjustments To Reconcile Net Income To Cash [Line Items] |  |  |
Amortizations | 1,343 | 906 | 1,519
Impairments | 0 | 0 | 36
Intellectual property rights brands and other intangible assets [member] |  |  |
Disclosure Of Adjustments To Reconcile Net Income To Cash [Line Items] |  |  |
Amortizations | 1,164 | 1,083 | 1,019
Impairments | kr 201 | kr 137 | kr 19

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