| (in millions of euros) | Notes | December 31, 2024 | December 31, 2023 | 
|---|---|---|---|
| Assets | AssetsNotes 
 | AssetsDecember 31, 2024 
 | AssetsDecember 31, 2023 
 | 
| Goodwill | GoodwillNotes12 | GoodwillDecember 31, 2024 13,843 | GoodwillDecember 31, 2023 12,422 | 
| Intangible assets | Intangible assetsNotes13 | Intangible assetsDecember 31, 2024 1,069 | Intangible assetsDecember 31, 2023 958 | 
| Right-of-use assets related to leases | Right-of-use assets related to leasesNotes25 | Right-of-use assets related to leasesDecember 31, 2024 1,735 | Right-of-use assets related to leasesDecember 31, 2023 1,614 | 
| Property, plant and equipment | Property, plant and equipmentNotes14 | Property, plant and equipmentDecember 31, 2024 608 | Property, plant and equipmentDecember 31, 2023 596 | 
| Deferred tax assets | Deferred tax assetsNotes10 | Deferred tax assetsDecember 31, 2024 237 | Deferred tax assetsDecember 31, 2023 212 | 
| Equity-accounted investees | Equity-accounted investeesNotes15 | Equity-accounted investeesDecember 31, 2024 79 | Equity-accounted investeesDecember 31, 2023 46 | 
| Other non-current financial assets | Other non-current financial assetsNotes16 | Other non-current financial assetsDecember 31, 2024 287 | Other non-current financial assetsDecember 31, 2023 316 | 
| Non-current assets | Non-current assetsNotes 
 | Non-current assetsDecember 31, 202417,858 | Non-current assetsDecember 31, 202316,164 | 
| Inventories and work-in-progress | Inventories andwork-in-progressNotes17 | Inventories andwork-in-progressDecember 31, 2024 361 | Inventories andwork-in-progressDecember 31, 2023 341 | 
| Trade receivables | Trade receivablesNotes18 | Trade receivablesDecember 31, 2024 15,595 | Trade receivablesDecember 31, 2023 13,400 | 
| Contract assets | Contract assetsNotes27 | Contract assetsDecember 31, 2024 1,445 | Contract assetsDecember 31, 2023 1,297 | 
| Current tax assets | Current tax assetsNotes 
 | Current tax assetsDecember 31, 2024 176 | Current tax assetsDecember 31, 2023 144 | 
| Other current financial assets | Other current financial assetsNotes19 | Other current financial assetsDecember 31, 2024 176 | Other current financial assetsDecember 31, 2023 423 | 
| Other receivables and current assets | Other receivables and current assetsNotes19 | Other receivables and current assetsDecember 31, 2024 599 | Other receivables and current assetsDecember 31, 2023 697 | 
| Cash and cash equivalents | Cash and cash equivalentsNotes20 | Cash and cash equivalentsDecember 31, 2024 3,644 | Cash and cash equivalentsDecember 31, 2023 4,250 | 
| Current assets | Current assetsNotes 
 | Current assetsDecember 31, 202421,996 | Current assetsDecember 31, 202320,552 | 
| Total assets | Total assetsNotes 
 | Total assetsDecember 31, 2024 39,854 | Total assetsDecember 31, 2023 36,716 | 
| Equity and liabilities | |||
|---|---|---|---|
| Share capital | 102 | 102 | |
| Additional paid-in capital and retained earnings, Groupe share | 10,958 | 9,686 | |
| Equity attributable to holders of the Company | 21 | 11,060 | 9,788 | 
| Non-controlling interests | (24) | (40) | |
| Total equity | 11,036 | 9,748 | |
| Long-term borrowings | 24 | 1,843 | 2,462 | 
| Long-term lease liabilities | 25 | 2,099 | 1,992 | 
| Deferred tax liabilities | 10 | 172 | 98 | 
| Pension commitments and other long-term benefits | 23 | 271 | 265 | 
| Long-term provisions | 22 | 317 | 319 | 
| Non-current liabilities | 4,702 | 5,136 | |
| Short-term borrowings | 24 | 872 | 726 | 
| Short-term lease liabilities | 25 | 361 | 360 | 
| Trade payables | 26 | 19,375 | 17,077 | 
| Contract liabilities | 27 | 604 | 513 | 
| Current tax liabilities | 335 | 378 | |
| Pension commitments and other short-term benefits | 23 | 21 | 21 | 
| Short-term provisions | 22 | 249 | 255 | 
| Other current financial liabilities | 26 | 310 | 573 | 
| Other creditors and current liabilities | 26 | 1,989 | 1,929 | 
| Current liabilities | 24,116 | 21,832 | |
| Total equity and liabilities | 39,854 | 36,716 |