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Financial risk management - D.5. Liquidity risk (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Oct. 31, 2020
--- | --- | --- | --- | --- | ---
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Debt and financing | $ (6,886) | $ (5,815) |  |  |
Lease liability | (2,587) | (954) |  |  |
Cash and cash equivalents | 1,552 | 699 | $ 775 | $ 1,039 |
Net financial obligations | (5,357) | (5,174) |  |  |
Restricted cash | 50 | 57 |  |  |
Trade payables (excluding accruals) | (163) | (29) |  |  |
Trade receivables | 527 | 390 |  |  |
October 2020 MIC S.A. ESG Linked Revolving Credit Facility |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Borrowings face amount | 600 |  |  |  | $ 600
Liquidity risk |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Debt and financing | (6,937) | (5,869) |  |  |
Lease liability | (2,587) | (954) |  |  |
Cash and cash equivalents | 1,552 | 699 |  |  |
Derivative financial instruments | (23) | (59) |  |  |
Net financial obligations | (7,943) | (6,128) |  |  |
Restricted cash | 50 |  |  |  |
Future interest commitments related to debt and financing | (1,779) | (2,326) |  |  |
Future interest commitments related to leases | (1,134) | (463) |  |  |
Trade payables (excluding accruals) | (1,418) | (467) |  |  |
Other financial liabilities (including accruals) | (1,709) | (1,219) |  |  |
Trade receivables | 527 | 390 |  |  |
Other financial assets | 341 | 242 |  |  |
Total | $ (13,067) | $ (9,971) |  |  |
Liquidity risk | Commercial Banks |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Concentration risk percentage | 24.00% | 20.00% |  |  |
Liquidity risk | Bonds |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Concentration risk percentage | 48.00% | 66.00% |  |  |
Liquidity risk | Finance lease liabilities |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Concentration risk percentage | 27.00% | 14.00% |  |  |
Liquidity risk | Deferred financing costs netting |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Debt and financing | $ 52 | $ 54 |  |  |
Liquidity risk | Less than 1 year |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Debt and financing | (330) | (283) |  |  |
Lease liability | (293) | (156) |  |  |
Cash and cash equivalents | 1,552 | 699 |  |  |
Derivative financial instruments | (9) | 0 |  |  |
Net financial obligations | 921 | 262 |  |  |
Restricted cash | 50 |  |  |  |
Future interest commitments related to debt and financing | (448) | (352) |  |  |
Future interest commitments related to leases | (177) | (90) |  |  |
Trade payables (excluding accruals) | (839) | (467) |  |  |
Other financial liabilities (including accruals) | (1,380) | (1,219) |  |  |
Trade receivables | 527 | 390 |  |  |
Other financial assets | 218 | 171 |  |  |
Total | (1,128) | (1,305) |  |  |
Liquidity risk | Less than 1 year | Deferred financing costs netting |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Debt and financing | 1 | 1 |  |  |
Liquidity risk | 1 to 5 years |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Debt and financing | (3,800) | (2,757) |  |  |
Lease liability | (893) | (445) |  |  |
Cash and cash equivalents | 0 | 0 |  |  |
Derivative financial instruments | (14) | (59) |  |  |
Net financial obligations | (4,691) | (3,245) |  |  |
Restricted cash | 0 |  |  |  |
Future interest commitments related to debt and financing | (1,244) | (1,830) |  |  |
Future interest commitments related to leases | (526) | (253) |  |  |
Trade payables (excluding accruals) | (579) | 0 |  |  |
Other financial liabilities (including accruals) | (329) | 0 |  |  |
Trade receivables | 0 | 0 |  |  |
Other financial assets | 123 | 71 |  |  |
Total | (7,246) | (5,257) |  |  |
Liquidity risk | 1 to 5 years | Deferred financing costs netting |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Debt and financing | 16 | 16 |  |  |
Liquidity risk | Greater than 5 years |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Debt and financing | (2,808) | (2,829) |  |  |
Lease liability | (1,400) | (352) |  |  |
Cash and cash equivalents | 0 | 0 |  |  |
Derivative financial instruments | 0 | 0 |  |  |
Net financial obligations | (4,173) | (3,145) |  |  |
Restricted cash | 0 |  |  |  |
Future interest commitments related to debt and financing | (88) | (144) |  |  |
Future interest commitments related to leases | (432) | (121) |  |  |
Trade payables (excluding accruals) | 0 | 0 |  |  |
Other financial liabilities (including accruals) | 0 | 0 |  |  |
Trade receivables | 0 | 0 |  |  |
Other financial assets | 0 | 0 |  |  |
Total | (4,693) | (3,410) |  |  |
Liquidity risk | Greater than 5 years | Deferred financing costs netting |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Debt and financing | $ 35 | $ 36 |  |  |

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