Goodwill and other intangible assets - Other intangibles (Details) - USD ($) $ in Millions |
Jun. 30, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Finite-lived | ||
| Gross value | $ 5,809.1 | $ 5,878.4 |
| Accumulated amortization and impairment | 2,318.6 | 2,195.4 |
| Carrying value | 3,490.5 | 3,683.0 |
| Indefinite-lived | 92.3 | 92.3 |
| Total | 3,582.8 | 3,775.3 |
| Accumulated asset impairment charge | 106.4 | 106.4 |
| Customer relationships | ||
| Finite-lived | ||
| Gross value | 4,822.3 | 4,883.2 |
| Accumulated amortization and impairment | 1,772.0 | 1,670.3 |
| Carrying value | 3,050.3 | 3,212.9 |
| Accumulated asset impairment charge | 65.9 | 65.9 |
| Trade names | ||
| Finite-lived | ||
| Gross value | 355.5 | 359.7 |
| Accumulated amortization and impairment | 234.3 | 228.3 |
| Carrying value | 121.2 | 131.4 |
| Other | ||
| Finite-lived | ||
| Gross value | 631.3 | 635.5 |
| Accumulated amortization and impairment | 312.3 | 296.8 |
| Carrying value | 319.0 | 338.7 |
| Accumulated asset impairment charge | $ 40.5 | $ 40.5 |
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- Definition Finite-Lived Intangible Assets, Impaired, Accumulated Impairment Loss No definition available.
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount before accumulated amortization of intangible assets, excluding goodwill. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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