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Accumulated Other Comprehenive Income (Loss) | 3 Months Ended
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Mar. 31, 2025
Accumulated Other Comprehensive Income (Loss) [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | The following table sets forth the changes in AOCI, net of tax, by component during the three months ended March 31, 2025 and March 31, 2024:
| Foreign Currency Translation Gain (Loss) |  | Net Actuarial Gain and Prior Service Cost |  | Amortization of Gain on Interest Rate Swap |  | Net Gain (Loss) on Marketable Securities Held in Trust |  | Total
Three Months Ended March 31, 2025 |  |  |  |  |  |  |  |  |
Balance at December 31, 2024 | $ | (2,420.3) |  |  | $ | (22.1) |  |  | $ | 8.0 |  |  | $ | (14.6) |  |  | $ | (2,449.0) |
Other comprehensive income (loss) | 109.1 |  |  | 0.2 |  |  | — |  |  | 10.3 |  |  | 119.6 |
Tax (expense) benefit | (1.0) |  |  | (0.1) |  |  | — |  |  | (2.4) |  |  | (3.5) |
Other comprehensive income (loss), net of tax | 108.1 |  |  | 0.1 |  |  | — |  |  | 7.9 |  |  | 116.1 |
Other comprehensive income (loss) attributable to noncontrolling interest | (1.6) |  |  | — |  |  | — |  |  | — |  |  | (1.6) |
Balance as of March 31, 2025 | $ | (2,313.8) |  |  | $ | (22.0) |  |  | $ | 8.0 |  |  | $ | (6.7) |  |  | $ | (2,334.5) |
Three Months Ended March 31, 2024 |  |  |  |  |  |  |  |  |
Balance at December 31, 2023 | $ | (1,930.2) |  |  | $ | (33.0) |  |  | $ | 8.1 |  |  | $ | 0.2 |  |  | $ | (1,954.9) |
Other comprehensive income (loss) | (125.5) |  |  | 1.3 |  |  | — |  |  | (13.3) |  |  | (137.5) |
Tax (expense) benefit | (4.2) |  |  | (0.5) |  |  | — |  |  | 3.0 |  |  | (1.7) |
Other comprehensive income (loss), net of tax | (129.7) |  |  | 0.8 |  |  | — |  |  | (10.3) |  |  | (139.2) |
Other comprehensive income (loss) attributable to noncontrolling interest | 0.8 |  |  | — |  |  | — |  |  | — |  |  | 0.8 |
Balance as of March 31, 2024 | $ | (2,059.1) |  |  | $ | (32.2) |  |  | $ | 8.1 |  |  | $ | (10.1) |  |  | $ | (2,093.3) |

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- Definition Accumulated Other Comprehensive Income (Loss) [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-14A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481674/830-30-50-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20 + Details
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