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Segment Information - Summary of Operating Segments (Parenthetical) (Detail) kr in Billions | 12 Months Ended
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Dec. 31, 2019 SEK (kr)
Disclosure of operating segments [abstract] |
Costs related to resolution of SEC and DOJ investigations | kr 10.7

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- Definition Costs related to resolution of SEC and DOJ investigations. + References No definition available. + Details
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Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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