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Contractual Obligations - Summary of Contractual Obligations (Detail) - SEK (kr) kr in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Disclosure of Contractual Obligations [line items] |  |  |
Other non-current liabilities | kr 1,383 | kr 2,114 | kr 4,346
Trade payables | 31,988 | 30,403 |
Contractual obligations [member] |  |  |
Disclosure of Contractual Obligations [line items] |  |  |
Current and non-current debt | 31,300 | 38,800 |
Lease obligations | 10,900 | 11,800 |
Other non-current liabilities | 1,400 | 2,100 |
Purchase obligations | 15,200 | 11,300 |
Trade payables | 32,000 | 30,400 |
Commitments for customer ﬁnance | 26,900 | 25,900 |
Derivatives liabilities | 200 | 1,000 |
Total | 117,900 | 121,300 |
Contractual obligations [member] | 2021 [member] |  |  |
Disclosure of Contractual Obligations [line items] |  |  |
Current and non-current debt | 8,400 | 9,800 |
Lease obligations | 2,600 | 2,800 |
Other non-current liabilities | 100 | 100 |
Purchase obligations | 12,000 | 10,600 |
Trade payables | 32,000 | 30,400 |
Commitments for customer ﬁnance | 26,900 | 25,900 |
Derivatives liabilities | 100 | 400 |
Total | 82,100 | 80,000 |
Contractual obligations [member] | Maturity between 1 and 3 years [member] |  |  |
Disclosure of Contractual Obligations [line items] |  |  |
Current and non-current debt | 10,800 | 15,600 |
Lease obligations | 3,900 | 4,100 |
Other non-current liabilities | 700 | 700 |
Purchase obligations | 2,600 | 600 |
Derivatives liabilities | 100 | 500 |
Total | 18,100 | 21,500 |
Contractual obligations [member] | Maturity between 3 and 5 years [member] |  |  |
Disclosure of Contractual Obligations [line items] |  |  |
Current and non-current debt | 10,200 | 10,500 |
Lease obligations | 2,500 | 2,600 |
Other non-current liabilities |  | 100 |
Purchase obligations | 600 | 100 |
Total | 13,300 | 13,300 |
Contractual obligations [member] | 2026 and later [member] |  |  |
Disclosure of Contractual Obligations [line items] |  |  |
Current and non-current debt | 1,900 | 2,900 |
Lease obligations | 1,900 | 2,300 |
Other non-current liabilities | 600 | 1,200 |
Derivatives liabilities |  | 100 |
Total | kr 4,400 | kr 6,500 |

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