Goodwill and Other Intangibles (Other Intangible Assets Subject to Amortization and Capitalized Software) (Detail) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
Dec. 31, 2024 |
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| Other Intangible Assets | |||||
| Intangible Asset, Acquired, Finite-Lived [Line Items] | |||||
| Gross Carrying Amount | $ 136.5 | $ 136.5 | $ 127.0 | ||
| Less: Accumulated Amortization | 75.3 | 75.3 | 68.9 | ||
| Net Book Value | 61.2 | $ 64.4 | 61.2 | $ 64.4 | 58.1 |
| Finite-Lived Intangible Assets [Roll Forward] | |||||
| Balance | 58.2 | 67.0 | 58.1 | 71.6 | |
| Amortization | (2.3) | (2.3) | (4.4) | (4.7) | |
| Foreign Exchange Rates | 5.3 | (0.3) | 7.5 | (2.5) | |
| Balance | 61.2 | 64.4 | 61.2 | 64.4 | |
| Computer Software | |||||
| Intangible Asset, Acquired, Finite-Lived [Line Items] | |||||
| Gross Carrying Amount | 4,764.7 | 4,764.7 | 4,259.6 | ||
| Less: Accumulated Amortization | 2,413.5 | 2,413.5 | 2,104.5 | ||
| Net Book Value | 2,351.2 | 2,351.2 | $ 2,155.1 | ||
| Finite-Lived Intangible Assets [Roll Forward] | |||||
| Balance | 2,155.1 | ||||
| Amortization | (168.0) | $ (150.6) | (330.9) | $ (291.0) | |
| Balance | $ 2,351.2 | $ 2,351.2 | |||
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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 of foreign currency translation gain (loss) which increases (decreases) assets, excluding financial assets and goodwill, lacking physical substance with a finite life. No definition available.
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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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- 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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