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Financial Risk Management - Summary of Reconciliation of Level 3 Fair Value of Other Financial Asset Investment in Shares and Participations (Detail) kr in Millions	12 Months Ended
	Dec. 31, 2023 SEK (kr)
Reconciliation of changes in fair value measurement, assets [abstract]
Opening balance	kr 349,537
Closing balance	297,036
Level 3 [member] | Investment in shares and participations [member]
Reconciliation of changes in fair value measurement, assets [abstract]
Opening balance	1,986
Additions	206
Disposals	(2)
Gains or losses 1)	(186)
Translation differences	(2)
Closing balance	kr 2,002

X

- Definition

The amount of a present economic resource controlled by the entity as a result of past events. Economic resource is a right that has the potential to produce economic benefits.

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- Definition

The gains (losses) on exchange differences, recognised in other comprehensive income, on the fair value measurement of assets. [Refer: At fair value [member]; Other comprehensive income]

+ References

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The gains (losses) excluding exchange differences, recognised in profit or loss, on the fair value measurement of assets. [Refer: At fair value [member]]

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The decrease in the fair value measurement of assets resulting from sales. [Refer: At fair value [member]]

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