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Statement of Cash Flows - Summary of Acquisitions/Divestments of Subsidiaries and Other Operations (Detail) - SEK (kr) kr in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure Of Acquisitions And Divestments [Line Items] |  |  |
Acquisitions | kr (9,657) | kr (1,753) | kr (1,618)
Divestments | 59 | 248 | 333
Cash flow from business combination [member] |  |  |
Disclosure Of Acquisitions And Divestments [Line Items] |  |  |
Acquisitions | (9,534) | (1,815) | (1,220)
Divestments | 4 | 360 | 226
Acquisition or divestments of other investment [member] |  |  |
Disclosure Of Acquisitions And Divestments [Line Items] |  |  |
Acquisitions | (123) | 62 | (398)
Divestments | kr 55 | kr (112) | kr 107

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- Definition Cash flows from losing control of subsidiaries, classified as investing activities. + References No definition available. + Details
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- Definition Cash flows used in obtaining control of subsidiaries, classified as investing activities. + References No definition available. + Details
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- Details
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- Details
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