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Financial risk management - D.1.2. Interest rate swap contracts (Details) $ in Millions | Dec. 31, 2022 USD ($) | Jan. 19, 2022 USD ($) | Jan. 10, 2022 USD ($) | Jan. 10, 2022 SEK (kr) | Dec. 31, 2021 USD ($) | May 31, 2019 USD ($) | May 31, 2019 SEK (kr)
--- | --- | --- | --- | --- | --- | --- | ---
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |  |
Borrowings | $ 6,804.0 |  |  |  | $ 7,744.0 |  |
SEK Variable Rate Notes |  |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  |  | $ 207.6 | kr 2,000,000,000
SEK Variable Rate Notes |  |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |  |
Derivative notional amount |  |  | $ 252.3 | kr 2,200,000,000 |  |  |
Interest rate risk |  |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |  |
Borrowings | 6,804.0 |  |  |  | 7,744.0 |  |
Interest rate swap | Interest rate risk |  |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |  |
Derivative financial liabilities held for hedging | 53.0 |  |  |  |  |  |
Derivative financial assets held for hedging |  |  |  |  | 6.0 |  |
El Salvador |  |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |  |
Borrowings | 173.0 |  |  |  | 100.0 |  |
El Salvador | Interest rate swap | Interest rate risk |  |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |  |
Derivative financial liabilities held for hedging | 0.0 |  |  |  | 1.0 |  |
Colombia |  |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |  |
Borrowings | 605.0 |  |  |  | 802.0 |  |
Colombia | Interest rate swap | Interest rate risk |  |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |  |
Derivative financial assets held for hedging | $ 19.0 |  |  |  | $ 15.0 |  |
Derivative financial assets held for hedging, settled in cash |  | $ 8.0 |  |  |  |  |

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