Goodwill and other intangible assets - goodwill rollforward (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
Dec. 31, 2025 |
Sep. 30, 2025 |
Dec. 31, 2025 |
Dec. 31, 2024 |
Jan. 01, 2024 |
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| Changes to goodwill | |||||
| Beginning balance, net | $ 5,539.2 | $ 5,716.7 | |||
| Currency translation | 232.7 | (118.5) | |||
| Impairment loss | $ (785.0) | $ (785.0) | (785.0) | ||
| Divestitures | (59.0) | ||||
| Ending balance, net | 4,986.9 | 4,986.9 | 5,539.2 | ||
| Accumulated impairment of goodwill | |||||
| Goodwill, net (see note 11) | 4,986.9 | 4,986.9 | 5,539.2 | $ 5,716.7 | |
| Accumulated impairment losses | 823.8 | 823.8 | 38.8 | 38.8 | |
| Goodwill, gross | 5,810.7 | 5,810.7 | 5,578.0 | 5,755.5 | |
| Laboratory Solutions | |||||
| Changes to goodwill | |||||
| Beginning balance, net | 3,651.2 | 3,823.6 | |||
| Currency translation | 223.1 | (113.4) | |||
| Impairment loss | (785.0) | ||||
| Divestitures | (59.0) | ||||
| Ending balance, net | 3,089.3 | 3,089.3 | 3,651.2 | ||
| Accumulated impairment of goodwill | |||||
| Goodwill, net (see note 11) | 3,089.3 | 3,089.3 | 3,651.2 | 3,823.6 | |
| Accumulated impairment losses | 803.4 | 803.4 | 18.4 | 18.4 | |
| Goodwill, gross | 3,892.7 | 3,892.7 | 3,669.6 | 3,842.0 | |
| Bioscience Production | |||||
| Changes to goodwill | |||||
| Beginning balance, net | 1,888.0 | 1,893.1 | |||
| Currency translation | 9.6 | (5.1) | |||
| Impairment loss | 0.0 | ||||
| Divestitures | 0.0 | ||||
| Ending balance, net | 1,897.6 | 1,897.6 | 1,888.0 | ||
| Accumulated impairment of goodwill | |||||
| Goodwill, net (see note 11) | 1,897.6 | 1,897.6 | 1,888.0 | 1,893.1 | |
| Accumulated impairment losses | 20.4 | 20.4 | 20.4 | 20.4 | |
| Goodwill, gross | $ 1,918.0 | $ 1,918.0 | $ 1,908.4 | $ 1,913.5 | |
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- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) asset representing future economic benefit from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Includes amount, before amortization expense and impairment loss, of goodwill for private company. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of accumulated impairment loss for asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of divestiture of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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