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Associated Companies - Equity in Associated Companies (Detail) - SEK (kr) kr in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure Of Investments Accounted For Using Equity Method [Line Items] |  |  |  |
Share in earnings | kr (260) |  | kr (298) | kr (335)
Taxes | (6,270) |  | (9,589) | (6,922)
Dividends | (6,889) | [1] | (5,996) | (4,450)
Associates [member] |  |  |  |
Disclosure Of Investments Accounted For Using Equity Method [Line Items] |  |  |  |
Equity in joint ventures and associated companies,Opening balance | 1,274 |  | 1,565 |
Investments | 0 |  | 167 |
Share in earnings | (260) |  | (298) |
Distribution of capital stock | 0 |  | (3) |
Taxes | (11) |  | (33) |
Dividends | (90) |  | (43) |
Translation differences | 28 |  | (81) |
Equity in joint ventures and associated companies,Closing balance | kr 941 |  | kr 1,274 | kr 1,565
[1] | Dividends paid per share amounted to SEK 2.00 (SEK 1.50 in 2020 and SEK 1.00 in 2019).

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