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Assets held for sale and divestitures - Narrative (Details) - Disposal group, held-for-sale, not discontinued operations - Lime operations - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Nov. 30, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Consideration |  | $ 1,100
Gain (loss) on disposal | $ 115 |

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