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Financial Risk Management - Additional Information (Detail) € in Millions, kr in Millions, $ in Millions | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2021 USD ($) | Jun. 30, 2021 USD ($) | May 31, 2021 | Mar. 31, 2021 EUR (€) | Dec. 31, 2021 SEK (kr) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 SEK (kr) | Dec. 31, 2019 SEK (kr) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |  |  |  |  |  |
Description of objectives, policies and processes for managing risk |  |  |  |  | In order to spread the FX execution risk over the year, 14% of each of the next six months forecasted sales and purchases in EAB are hedged monthly. The hedged volumes are funded by internal loans from its parent company which are not hedged, therefore the FX impact on revaluation of the loan is recognized in net FX as incurred. | In order to spread the FX execution risk over the year, 14% of each of the next six months forecasted sales and purchases in EAB are hedged monthly. The hedged volumes are funded by internal loans from its parent company which are not hedged, therefore the FX impact on revaluation of the loan is recognized in net FX as incurred. |  |  |  |
Outstanding loan at year-end | $ |  |  |  |  |  |  |  |  | $ 728 | $ 610
Average balance over the year | $ |  |  |  |  |  |  |  |  | $ 926 |
Net gain on the hedge loan balances |  |  |  |  | kr 845.0 |  |  |  |  |
Realization of loan amount |  |  |  |  | 298.0 |  |  |  |  |
Revaluation of loan amount |  |  |  |  | kr 547.0 |  |  |  |  |
Percentage of probability level |  |  |  |  | 99.00% | 99.00% |  |  |  |
Description of Sensitivity analysis |  |  |  |  | The Company uses the Value at Risk (VaR) methodology to measure foreign exchange and interest rate risks managed by the treasury function. This statistical method expresses the maximum potential loss that can arise with a certain degree of probability during a certain period of time. For the VaR measurement, the Company has chosen a probability level of 99% and a one-day time horizon | The Company uses the Value at Risk (VaR) methodology to measure foreign exchange and interest rate risks managed by the treasury function. This statistical method expresses the maximum potential loss that can arise with a certain degree of probability during a certain period of time. For the VaR measurement, the Company has chosen a probability level of 99% and a one-day time horizon |  |  |  |
Percentage of risk at confidence level |  |  |  |  | 99.00% | 99.00% |  |  |  |
Maximum foreign exchange positions |  |  |  |  | kr 45.0 |  |  |  |  |
Average of value at risk calculated |  |  |  |  | 15.3 |  | kr 21.0 |  |  |
Sensitivity to interest rate increase of 1 basis point |  |  |  |  | 2.0 |  |  |  |  |
Trade receivables and contract assets |  |  |  |  | 55,905.0 |  | 53,336.0 |  |  |
Provisions for expected credit losses on trade receivables and contract assets |  |  |  |  | 2,398.0 |  | 2,518.0 |  |  |
Receivables write-offs |  |  |  |  | 163.0 |  | 136.0 |  |  |
Receivables subject to enforcement |  |  |  |  | kr 0.0 |  | 0.0 |  |  |
Information about major customers |  |  |  |  | The five largest facilities represented 70% (75%) of the customer finance exposure in 2021 | The five largest facilities represented 70% (75%) of the customer finance exposure in 2021 |  |  |  |
Customer finance credits |  |  |  |  | kr 5,239.0 |  | 5,262.0 |  |  |
Carrying value of customer finance credits |  |  |  |  | 3,287.0 |  | 3,137.0 |  |  |
Total customer finance arrangements |  |  |  |  | kr 81.0 |  | kr 72.0 |  |  |
Aggregate percentage of customer finance exposure |  |  |  |  | 44.00% | 44.00% | 44.00% |  |  |
Unutilized customer finance commitments |  |  |  |  | kr 47,344.0 |  | kr 26,939.0 |  |  |
Fair value revaluations for customer finance |  |  |  |  | 350.0 |  | 262.0 |  |  |
Customer finance credit realized losses |  |  |  |  | 347.0 |  | 262.0 |  |  |
Credit exposure |  |  |  |  |  |  | 300.0 |  |  |
Redemption of debt |  |  |  |  | 5,791.0 |  | 9,031.0 | kr 4,134.0 |  |
Proceeds from issue of debt |  |  |  |  | 7,882.0 |  | kr 3,219.0 | kr 5,050.0 |  |
European Investment Bank credit facility [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |  |  |  |  |  |
Borrowings maturity |  | 2028 |  |  |  |  |  |  |  |
Proceeds from issue of debt | $ |  | $ 305 |  |  |  |  |  |  |  |
New Sustainability Linked Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |  |  |  |  |  |
Committed Credit Facilities Amount | $ | $ 2,000 |  |  |  |  |  |  |  |  |
Multi-currency revolving credit facility [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |  |  |  |  |  |
Committed Credit Facilities Amount | $ | $ 2,000 |  |  |  |  | $ 2,000 |  |  |  |
Euro Medium Term Note Program [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |  |  |  |  |  |
Borrowings maturity |  |  | 2029 |  |  |  |  |  |  |
Redemption of debt | € |  |  |  | € 500 |  |  |  |  |  |
Proceeds from issue of debt | € |  |  |  | € 500 |  |  |  |  |  |
Derivatives [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |  |  |  |  |  |
Credit exposure |  |  |  |  | kr 300.0 |  |  |  |  |
North America [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate percentage of customer finance exposure |  |  |  |  | 32.00% | 32.00% | 20.00% |  |  |
Interest Bearing Assets [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |  |  |  |  |  |
Sensitivity to interest rate increase of 1 basis point |  |  |  |  | kr (7.0) |  |  |  |  |
Interest bearing liabilities [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |  |  |  |  |  |
Sensitivity to interest rate increase of 1 basis point |  |  |  |  | kr 7.0 |  |  |  |  |
Trade receivables [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |  |  |  |  |  |
Concentrations of risk |  |  |  |  | 47.00% | 47.00% |  |  |  |
Contract assets [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |  |  |  |  |  |
Concentrations of risk |  |  |  |  | (50.00%) | (50.00%) |  |  |  |
Exchange rate risk [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |  |  |  |  |  |
SEK exchange rate |  |  |  |  | 14 | 14 |  |  |  |
Top of range [Member] | Interest Bearing Assets [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |  |  |  |  |  |
Sensitivity to interest rate increase of 1 basis point |  |  |  |  | kr 10.0 |  |  |  |  |
Top of range [Member] | Interest bearing liabilities [member] |  |  |  |  |  |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |  |  |  |  |  |
Sensitivity to interest rate increase of 1 basis point |  |  |  |  | kr 1.1 |  | kr 0.5 |  |  |

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