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Other Current Receivables - Summary of Other Current Receivables (Detail) - SEK (kr) kr in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
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Disclosure of other current receivables [line items] |  |  |
Prepaid expenses | kr 1,857 | kr 1,418 |
Advance payments to suppliers | 468 | 412 |
Derivative assets | 1,510 | 142 |
Taxes | 10,839 | 9,778 |
Total other current receivables | 16,014 | 14,479 | kr 20,844
Others [member] |  |  |
Disclosure of other current receivables [line items] |  |  |
Total other current receivables | kr 1,340 | kr 2,729 |

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- Definition The amount of current advances made to suppliers before goods or services are received. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount recognised as a current asset for expenditures made prior to the period when the economic benefit will be realised. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
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