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Postretirement and Other Benefits - Net Pension Benefit Costs (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Pension Benefits | United States |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Service cost | $ 1.6 | $ 0.9 | $ 0.0
Interest cost | 17.7 | 9.3 | 2.8
Expected return on plan assets | (22.1) | (11.9) | (3.9)
Amortizations and other | 0.0 | 1.7 | 3.2
Net periodic benefit cost (benefit) | (2.8) | 0.0 | 2.1
Pension Benefits | Non-U.S. |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Service cost | 1.0 | 0.7 | 0.3
Interest cost | 8.4 | 4.4 | 2.5
Expected return on plan assets | (4.3) | (4.3) | (2.7)
Amortizations and other | 0.4 | 0.4 | 0.0
Net periodic benefit cost (benefit) | 5.5 | 1.2 | $ 0.1
Other Postretirement Benefits | United States |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Service cost | 0.2 | 0.1 |
Interest cost | 1.2 | 0.6 |
Expected return on plan assets | 0.0 | 0.0 |
Amortizations and other | 0.0 | 0.0 |
Net periodic benefit cost (benefit) | 1.4 | 0.7 |
Other Postretirement Benefits | Non-U.S. |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Service cost | 1.2 | 0.4 |
Interest cost | 0.1 | 0.0 |
Expected return on plan assets | 0.0 | 0.0 |
Amortizations and other | 0.1 | 0.2 |
Net periodic benefit cost (benefit) | $ 1.4 | $ 0.6 |

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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480535/715-20-45-3A Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-18 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-6 + Details
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