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Provisions - Summary of Provisions (Detail) - SEK (kr) kr in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Disclosure Of Changes In Provisions [line items] |  |
Opening balance | kr 10,923 | kr 16,008
Additions | 5,247 | 7,172
Reversal of excess amounts | (1,161) | (1,183)
Negative effect on Income statement | 4,086 | 5,989
Utilization/Cash out | (3,975) | (7,576)
Reclassiﬁcations | (27) | (3,619)
Translation differences | (541) | 121
Closing balance | 10,466 | 10,923
Restructuring [member] |  |
Disclosure Of Changes In Provisions [line items] |  |
Opening balance | 1,095 | 3,309
Additions | 1,144 | 436
Reversal of excess amounts | (149) | (290)
Utilization/Cash out | (815) | (1,788)
Reclassiﬁcations | 9 | (659)
Translation differences | (84) | 87
Closing balance | 1,200 | 1,095
Customer Related Provision [member] |  |
Disclosure Of Changes In Provisions [line items] |  |
Opening balance | 3,738 | 8,916
Additions | 1,108 | 1,323
Reversal of excess amounts | (83) | (86)
Utilization/Cash out | (766) | (3,247)
Reclassiﬁcations | (4) | (3,217)
Translation differences | (143) | 49
Closing balance | 3,850 | 3,738
Suppliers Related Provision [member] |  |
Disclosure Of Changes In Provisions [line items] |  |
Opening balance | 1,309 | 1,559
Additions | 535 | 1,641
Reversal of excess amounts | (438) | (739)
Utilization/Cash out | (595) | (1,052)
Reclassiﬁcations | (14) | (101)
Translation differences | (6) | 1
Closing balance | 791 | 1,309
Warranty [member] |  |
Disclosure Of Changes In Provisions [line items] |  |
Opening balance | 941 | 363
Additions | 248 | 906
Reversal of excess amounts | (99) | (43)
Utilization/Cash out | (105) | (288)
Reclassiﬁcations | 3 |
Translation differences | (1) | 3
Closing balance | 987 | 941
Other [member] |  |
Disclosure Of Changes In Provisions [line items] |  |
Opening balance | 3,840 | 1,861
Additions | 2,212 | 2,866
Reversal of excess amounts | (392) | (25)
Utilization/Cash out | (1,694) | (1,201)
Reclassiﬁcations | (21) | 358
Translation differences | (307) | (19)
Closing balance | kr 3,638 | kr 3,840

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- Definition The increase (decrease) in other provisions resulting from foreign currency exchange rate changes on provisions measured in a currency different from the entity's presentation currency. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2020-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&anchor=para_84&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The increase (decrease) in other provisions resulting from transfers and changes that the entity does not separately disclose in the same statement or note. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2020-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&anchor=para_84&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount used (ie incurred and charged against the provision) for other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2020-01-01 -Paragraph 84 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&anchor=para_84_c&doctype=Standard -URIDate 2020-01-01 + Details
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