Long-lived Assets (Intangible Assets Subject to Amortization, Net) (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Property, Plant, and Equipment [Line Items] | ||
| Gross carrying amount | $ 8,055.5 | $ 2,130.7 |
| Accumulated amortization | (895.6) | (781.3) |
| Net carrying amount | 7,159.9 | 1,349.4 |
| Customer relationships | ||
| Property, Plant, and Equipment [Line Items] | ||
| Gross carrying amount | 5,198.3 | 269.0 |
| Accumulated amortization | (239.0) | (186.0) |
| Net carrying amount | 4,959.3 | 83.0 |
| Licenses | ||
| Property, Plant, and Equipment [Line Items] | ||
| Gross carrying amount | 2,241.4 | 1,582.8 |
| Accumulated amortization | (492.0) | (438.0) |
| Net carrying amount | 1,749.4 | 1,144.8 |
| Other | ||
| Property, Plant, and Equipment [Line Items] | ||
| Gross carrying amount | 615.8 | 278.9 |
| Accumulated amortization | (164.6) | (157.3) |
| Net carrying amount | $ 451.2 | $ 121.6 |
| X | ||||||||||
- Definition Amount of accumulated amortization of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount, before accumulated amortization, of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount, after accumulated amortization, of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- 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/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|