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v3.26.1

Capital structure and financing - C.1. Share capital and other equity reserves (Details) - USD ($) $ / shares in Units, $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
May 21, 2025 | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Feb. 28, 2022
Disclosure of reserves within equity [line items] |  |  |  |  |  |
Number of shares authorised (in shares) |  |  | 200,000,000 | 200,000,000 |  | 200,000,000
Subscribed and fully paid up share capital (in shares) |  |  | 169,000,000 | 172,096,305 |  |
Par value per share (usd per share) |  |  | $ 1.50 | $ 1.50 |  | $ 1.50
Share capital |  |  | $ 253 | $ 258 |  |
Share premium |  |  | 1,036 | 1,064 |  |
Share capital and premium |  |  | 1,290 | 1,322 |  |
Number of treasury shares cancelled (in shares) |  | 3,096,305 |  |  |  |
Other Reserves [Roll Forward] |  |  |  |  |  |
Other equity reserves, beginning balance |  |  | (531) |  |  |
Share based compensation | [1] |  | 14 | 50 | $ 52 |
Share based cancellation |  |  |  | (35) |  |
Issuance of shares with respect to LTIPs |  |  | 0 | 1 | 1 |
Remeasurements of post-employment benefit obligations |  |  | 0 | 1 | (2) |
Transfer to legal reserve | [1] |  |  | 0 | 0 |
Cash flow hedge reserve movement |  |  | 4 | (4) | (10) |
Currency translation movement |  |  | 31 | 15 | 33 |
Other equity reserves, ending balance |  |  | (689) | (531) |  |
Legal reserve |  |  |  |  |  |
Other Reserves [Roll Forward] |  |  |  |  |  |
Other equity reserves, beginning balance |  |  | 26 | 18 | 16 |
Transfer to legal reserve |  |  |  | 8 | 2 |
Other equity reserves, ending balance |  |  | 26 | 26 | 18 |
Equity settled transaction reserve |  |  |  |  |  |
Other Reserves [Roll Forward] |  |  |  |  |  |
Other equity reserves, beginning balance |  |  | 24 | 61 | 51 |
Share based compensation |  |  | 14 | 49 | 50 |
Share based cancellation |  |  |  | (35) |  |
Issuance of shares with respect to LTIPs |  |  | (29) | (50) | (40) |
Other equity reserves, ending balance |  |  | 9 | 24 | 61 |
Hedge reserve |  |  |  |  |  |
Other Reserves [Roll Forward] |  |  |  |  |  |
Other equity reserves, beginning balance |  |  | (4) | (2) | 5 |
Cash flow hedge reserve movement |  |  | 3 | (2) | (7) |
Other equity reserves, ending balance |  |  | (1) | (4) | (2) |
Currency translation reserve |  |  |  |  |  |
Other Reserves [Roll Forward] |  |  |  |  |  |
Other equity reserves, beginning balance |  |  | (573) | (571) | (626) |
Currency translation movement |  |  | (145) | (2) | 56 |
Other equity reserves, ending balance |  |  | (718) | (573) | (571) |
Pension obligation reserve |  |  |  |  |  |
Other Reserves [Roll Forward] |  |  |  |  |  |
Other equity reserves, beginning balance |  |  | (5) | (6) | (4) |
Share based cancellation |  |  |  | 0 |  |
Remeasurements of post-employment benefit obligations |  |  |  | 1 | (2) |
Transfer to legal reserve |  |  |  |  | 0 |
Other equity reserves, ending balance |  |  | (5) | (5) | (6) |
Total |  |  |  |  |  |
Other Reserves [Roll Forward] |  |  |  |  |  |
Share based compensation | [1] |  | 14 | 49 | 50 |
Share based cancellation |  |  |  | (35) |  |
Issuance of shares with respect to LTIPs |  |  |  | 1 | 1 |
Share premium |  |  |  |  |  |
Other Reserves [Roll Forward] |  |  |  |  |  |
Issuance of shares with respect to LTIPs | [1] |  | (8) | (12) | (9) |
Other reserves |  |  |  |  |  |
Other Reserves [Roll Forward] |  |  |  |  |  |
Other equity reserves, beginning balance |  |  | (531) | (500) | (559) |
Share based compensation | [1] |  | 14 | 49 | 50 |
Share based cancellation | [1] |  |  | (35) |  |
Issuance of shares with respect to LTIPs | [1] |  | (29) | (50) | (40) |
Remeasurements of post-employment benefit obligations |  |  |  | 1 | (2) |
Transfer to legal reserve | [1] |  |  | 8 | 2 |
Cash flow hedge reserve movement |  |  | 3 | (2) | (7) |
Currency translation movement |  |  | (145) | (2) | 56 |
Other equity reserves, ending balance |  |  | $ (689) | $ (531) | $ (500) |
[1] | Share capital, share premium (including the effects of rights offering) and other reserves (including share-based compensation) – see note C.1.

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