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Goodwill and other intangible assets (Tables) | 6 Months Ended
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Jun. 30, 2026
Intangible assets and goodwill [abstract] |
Schedule of movements in other intangible assets | Movements in other intangible assets during the first half of 2026 were as follows:
(€ million) | Acquired R&D | Products, trademarks and other rights | Software | Total other intangible assets
Gross value at January 1, 2026 | 14,951 |  | 66,746 |  | 1,888 |  | 83,585 |
Changes in scope of consolidation (a) | — |  | 1,149 |  | 1 |  | 1,150 |
Acquisitions and other increases | 321 |  | 122 |  | 88 |  | 531 |
Disposals and other decreases | (534) |  | (17) |  | (28) |  | (579) |
Currency translation differences | 324 |  | 1,232 |  | 12 |  | 1,568 |
Transfers (b) | (245) |  | (162) |  | (4) |  | (411) |
Gross value at June 30, 2026 | 14,817 |  | 69,070 |  | 1,957 |  | 85,844 |
Accumulated amortization and impairment at January 1, 2026 | (6,220) |  | (49,624) |  | (1,480) |  | (57,324) |
Amortization expense | — |  | (1,106) |  | (58) |  | (1,164) |
Impairment losses, net of reversals (c) | (970) |  | (61) |  | (17) |  | (1,048) |
Disposals and other decreases | 534 |  | 17 |  | 26 |  | 577 |
Currency translation differences | (135) |  | (785) |  | (10) |  | (930) |
Transfers (b) | — |  | 400 |  | 4 |  | 404 |
Accumulated amortization and impairment at June 30, 2026 | (6,791) |  | (51,159) |  | (1,535) |  | (59,485) |
Carrying amount at January 1, 2026 | 8,731 |  | 17,122 |  | 408 |  | 26,261 |
Carrying amount at June 30, 2026 | 8,026 |  | 17,911 |  | 422 |  | 26,359 |
(a)The “Changes in scope of consolidation” line mainly comprises the intangible assets recognized as part of the Dynavax acquisition (see Note B.1.) (b)The “Transfers” line mainly comprises (i) acquired R&D that came into commercial use during the period and (ii) reclassifications of assets to Assets held for sale. (c)See Note B.4.

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