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PENSION, HEALTH CARE AND OTHER POSTRETIREMENT BENEFITS (Tables) | 12 Months Ended
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Dec. 31, 2025
Retirement Benefits [Abstract] |
Summary of the Components of the Net Pension Costs and Cumulative Other Comprehensive Loss Related to the Defined Benefit Pension Plans | The following table summarizes the components of the net pension costs and changes recognized in AOCI related to the defined benefit pension plans:
| Domestic |  | Foreign
| 2025 |  | 2024 |  | 2023 |  | 2025 |  | 2024 |  | 2023
Net periodic pension (credit) cost: |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 2.4 |  |  | $ | 2.9 |  |  | $ | 3.0 |  |  | $ | 4.6 |  |  | $ | 4.6 |  |  | $ | 4.4 |
Interest cost | 5.2 |  |  | 4.9 |  |  | 4.6 |  |  | 13.3 |  |  | 11.8 |  |  | 11.8 |
Expected return on plan assets | (9.5) |  |  | (8.3) |  |  | (7.3) |  |  | (10.8) |  |  | (11.1) |  |  | (12.3) |
Amortization of prior service cost (credit) | 2.2 |  |  | 1.9 |  |  | 1.3 |  |  | (0.2) |  |  | (0.1) |  |  | (0.2) |
Amortization of actuarial gains | (2.1) |  |  | (0.5) |  |  | — |  |  | (1.2) |  |  | (1.3) |  |  | (1.5) |
Ongoing periodic pension (credit) cost | (1.8) |  |  | 0.9 |  |  | 1.6 |  |  | 5.7 |  |  | 3.9 |  |  | 2.2 |
Settlement credits | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (1.1) |
Curtailment cost | — |  |  | — |  |  | — |  |  | — |  |  | 7.1 |  |  | — |
Net periodic pension (credit) cost | (1.8) |  |  | 0.9 |  |  | 1.6 |  |  | 5.7 |  |  | 11.0 |  |  | 1.1 |
Other changes in plan assets and projected benefit obligation recognized in AOCI (before taxes): |  |  |  |  |  |  |  |  |  |  |
Net actuarial (gains) losses arising during the year | (11.0) |  |  | (20.9) |  |  | (8.6) |  |  | (1.1) |  |  | (8.0) |  |  | 5.8 |
Prior service cost arising during the year | 1.3 |  |  | 1.0 |  |  | 3.0 |  |  | — |  |  | 6.9 |  |  | 1.1 |
Amortization of actuarial gains | 2.1 |  |  | 0.5 |  |  | — |  |  | 1.2 |  |  | 1.3 |  |  | 1.5 |
Amortization of prior service (cost) credit | (2.2) |  |  | (1.9) |  |  | (1.3) |  |  | 0.2 |  |  | (7.0) |  |  | 0.2 |
Loss recognized for settlement | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 1.1 |
Effect of foreign exchange | — |  |  | — |  |  | — |  |  | (2.9) |  |  | 1.6 |  |  | (1.5) |
Total recognized in AOCI | (9.8) |  |  | (21.3) |  |  | (6.9) |  |  | (2.6) |  |  | (5.2) |  |  | 8.2 |
Total recognized in net periodic pension (credit) cost and AOCI | $ | (11.6) |  |  | $ | (20.4) |  |  | $ | (5.3) |  |  | $ | 3.1 |  |  | $ | 5.8 |  |  | $ | 9.3 |
Summary of the Fair Value of the Defined Benefit Pension Plan Assets | The following tables summarize the fair value of the defined benefit pension plan assets at December 31, 2025, 2024 and 2023. The presentation is in accordance with the Fair Value Topic of the ASC.
| Fair Value at December 31, 2025 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  |
Investments at fair value: |  |  |  |  |  |  |
Cash and cash equivalents | $ | 7.6 |  |  | $ | 7.6 |  |  | $ | — |  |  |
Equity investments (1) | 104.3 |  |  | 99.4 |  |  | 4.9 |  |  |
Fixed income investments (2) | 248.9 |  |  | 43.6 |  |  | 205.3 |  |  |
Other assets (3) | 28.3 |  |  | — |  |  | 28.3 |  |  |
Total investments in fair value hierarchy | 389.1 |  |  | $ | 150.6 |  |  | $ | 238.5 |  |  |
Investments measured at NAV or its equivalent (4) | 27.7 |  |  |  |  |  |  |
Total investments | $ | 416.8 |  |  |  |  |  |  |
| Fair Value at December 31, 2024 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  |
Investments at fair value: |  |  |  |  |  |  |
Cash and cash equivalents | $ | 8.7 |  |  | $ | 8.7 |  |  | $ | — |  |  |
Equity investments (1) | 95.3 |  |  | 86.6 |  |  | 8.7 |  |  |
Fixed income investments (2) | 226.5 |  |  | 36.8 |  |  | 189.7 |  |  |
Other assets (3) | 24.2 |  |  | — |  |  | 24.2 |  |  |
Total investments in fair value hierarchy | 354.7 |  |  | $ | 132.1 |  |  | $ | 222.6 |  |  |
Investments measured at NAV or its equivalent (4) | 25.3 |  |  |  |  |  |  |
Total investments | $ | 380.0 |  |  |  |  |  |  |
| Fair Value at December 31, 2023 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  |
Investments at fair value: |  |  |  |  |  |  |
Equity investments (1) | $ | 133.0 |  |  | $ | 72.9 |  |  | $ | 60.1 |  |  |
Fixed income investments (2) | 188.9 |  |  | 36.8 |  |  | 152.1 |  |  |
Other assets (3) | 34.6 |  |  | — |  |  | 34.6 |  |  |
Total investments in fair value hierarchy | 356.5 |  |  | $ | 109.7 |  |  | $ | 246.8 |  |  |
Investments measured at NAV or its equivalent (4) | 25.3 |  |  |  |  |  |  |
Total investments | $ | 381.8 |  |  |  |  |  |  |
(1) This category includes actively managed equity assets that track primarily to the S&P 500 or an international equity index. (2) This category includes government and corporate bonds that track primarily to a domestic or an international bond index. (3) This category primarily includes insurance contracts and real estate. (4) This category includes pooled investment funds and private equity funds that are measured at NAV or its equivalent using the practical expedient. Therefore, these investments are not classified in the fair value hierarchy.
Summary of the Obligations, Plan Assets and Assumptions Used for Defined Benefit Pension Plans | The following table summarizes the obligations, plan assets and assumptions used for the defined benefit pension plans, which are all measured as of December 31:
| Domestic |  | Foreign
| 2025 |  | 2024 |  | 2023 |  | 2025 |  | 2024 |  | 2023
Accumulated benefit obligations at end of year | $ | 100.6 |  |  | $ | 94.2 |  |  | $ | 100.5 |  |  | $ | 245.2 |  |  | $ | 221.7 |  |  | $ | 236.4 |
Projected benefit obligations: |  |  |  |  |  |  |  |  |  |  |
Balances at beginning of year | $ | 95.3 |  |  | $ | 102.1 |  |  | $ | 91.7 |  |  | $ | 243.0 |  |  | $ | 257.8 |  |  | $ | 230.4 |
Service cost | 2.4 |  |  | 2.9 |  |  | 3.0 |  |  | 4.6 |  |  | 4.6 |  |  | 4.4 |
Interest cost | 5.2 |  |  | 4.9 |  |  | 4.6 |  |  | 13.3 |  |  | 11.8 |  |  | 11.8 |
Actuarial losses (gains) | 1.1 |  |  | (11.1) |  |  | 2.8 |  |  | (4.3) |  |  | (19.8) |  |  | 8.8 |
Plan amendments and other | 1.3 |  |  | 1.0 |  |  | 3.0 |  |  | 4.8 |  |  | 13.5 |  |  | 2.0 |
Settlements | — |  |  | — |  |  | — |  |  | (2.3) |  |  | (2.2) |  |  | (3.7) |
Effect of foreign exchange | — |  |  | — |  |  | — |  |  | 24.1 |  |  | (12.2) |  |  | 14.1 |
Benefits paid | (3.6) |  |  | (4.5) |  |  | (3.0) |  |  | (11.3) |  |  | (10.5) |  |  | (10.0) |
Balances at end of year | 101.7 |  |  | 95.3 |  |  | 102.1 |  |  | 271.9 |  |  | 243.0 |  |  | 257.8 |
Plan assets: |  |  |  |  |  |  |  |  |  |  |
Balances at beginning of year | 148.7 |  |  | 135.1 |  |  | 119.4 |  |  | 231.3 |  |  | 246.7 |  |  | 223.6 |
Actual returns on plan assets | 21.6 |  |  | 18.1 |  |  | 18.7 |  |  | 7.7 |  |  | (2.6) |  |  | 15.4 |
Contributions and other | — |  |  | — |  |  | — |  |  | 5.4 |  |  | 5.7 |  |  | 8.6 |
Settlements | — |  |  | — |  |  | — |  |  | (2.3) |  |  | (2.2) |  |  | (3.7) |
Effect of foreign exchange | — |  |  | — |  |  | — |  |  | 19.3 |  |  | (7.1) |  |  | 12.8 |
Benefits paid | (3.6) |  |  | (4.5) |  |  | (3.0) |  |  | (11.3) |  |  | (10.5) |  |  | (10.0) |
Balances at end of year | 166.7 |  |  | 148.7 |  |  | 135.1 |  |  | 250.1 |  |  | 231.3 |  |  | 246.7 |
Excess (deficient) plan assets over projected benefit obligations | $ | 65.0 |  |  | $ | 53.4 |  |  | $ | 33.0 |  |  | $ | (21.8) |  |  | $ | (11.7) |  |  | $ | (11.1) |
Assets and liabilities recognized in the Consolidated Balance Sheets: |  |  |  |  |  |  |  |  |  |  |
Noncurrent pension assets | $ | 65.0 |  |  | $ | 53.4 |  |  | $ | 33.0 |  |  | $ | 61.5 |  |  | $ | 56.1 |  |  | $ | 57.9 |
Other accruals | — |  |  | — |  |  | — |  |  | (6.7) |  |  | (6.0) |  |  | (3.4) |
Other long-term liabilities | — |  |  | — |  |  | — |  |  | (76.6) |  |  | (61.8) |  |  | (65.6) |
| $ | 65.0 |  |  | $ | 53.4 |  |  | $ | 33.0 |  |  | $ | (21.8) |  |  | $ | (11.7) |  |  | $ | (11.1) |
Amounts recognized in AOCI: |  |  |  |  |  |  |  |  |  |  |
Net actuarial gains | $ | 45.9 |  |  | $ | 36.9 |  |  | $ | 16.6 |  |  | $ | 32.6 |  |  | $ | 29.9 |  |  | $ | 24.8 |
Prior service (costs) credits | (7.0) |  |  | (7.8) |  |  | (8.8) |  |  | 0.3 |  |  | 0.4 |  |  | 0.3 |
| $ | 38.9 |  |  | $ | 29.1 |  |  | $ | 7.8 |  |  | $ | 32.9 |  |  | $ | 30.3 |  |  | $ | 25.1 |
Weighted-average assumptions used to determine projected benefit obligations: |  |  |  |  |  |  |  |  |  |  |
Discount rate | 5.70 | % |  | 5.78 | % |  | 5.09 | % |  | 5.50 | % |  | 5.49 | % |  | 4.81 | %
Rate of compensation increase | 3.00 | % |  | 3.00 | % |  | 3.00 | % |  | 3.18 | % |  | 3.29 | % |  | 3.33 | %
Weighted-average assumptions used to determine net pension cost: |  |  |  |  |  |  |  |  |  |  |
Discount rate | 5.78 | % |  | 5.09 | % |  | 5.27 | % |  | 5.49 | % |  | 4.81 | % |  | 5.06 | %
Expected long-term rate of return on assets | 6.50 | % |  | 6.25 | % |  | 6.25 | % |  | 4.78 | % |  | 4.78 | % |  | 5.48 | %
Rate of compensation increase | 3.00 | % |  | 3.00 | % |  | 3.00 | % |  | 3.29 | % |  | 3.33 | % |  | 3.39 | %
Summary of the Obligation and the Assumptions Used for Postretirement Benefits Other than Pensions | The following table summarizes the obligation and the assumptions used for domestic other postretirement benefits:
| 2025 |  | 2024 |  | 2023
Benefit obligation: |  |  |  |  |
Balances at beginning of year - unfunded | $ | 135.1 |  |  | $ | 147.2 |  |  | $ | 153.8 |
Service cost | 0.2 |  |  | 0.5 |  |  | 0.6 |
Interest cost | 6.7 |  |  | 6.8 |  |  | 7.4 |
Actuarial gains | (2.3) |  |  | (8.6) |  |  | (8.0) |
Benefits paid | (14.1) |  |  | (10.8) |  |  | (6.6) |
Balances at end of year - unfunded | $ | 125.6 |  |  | $ | 135.1 |  |  | $ | 147.2 |
Liabilities recognized in the Consolidated Balance Sheets: |  |  |  |  |
Other accruals | $ | (14.1) |  |  | $ | (14.4) |  |  | $ | (14.0) |
Postretirement benefits other than pensions | (111.5) |  |  | (120.7) |  |  | (133.2) |
| $ | (125.6) |  |  | $ | (135.1) |  |  | $ | (147.2) |
Amounts recognized in AOCI: |  |  |  |  |
Net actuarial gains | $ | 20.9 |  |  | $ | 21.0 |  |  | $ | 12.9 |
Prior service credits | 1.9 |  |  | 16.2 |  |  | 40.0 |
| $ | 22.8 |  |  | $ | 37.2 |  |  | $ | 52.9 |
Weighted-average assumptions used to determine benefit obligations: |  |  |  |  |
Discount rate | 5.35 | % |  | 5.61 | % |  | 4.97 | %
Health care cost trend rate - pre-65 | 7.00 | % |  | 7.50 | % |  | 7.00 | %
Health care cost trend rate - post-65 | 6.00 | % |  | 6.50 | % |  | 6.00 | %
Prescription drug cost increases | 11.00 | % |  | 11.75 | % |  | 9.00 | %
Weighted-average assumptions used to determine net benefit cost: |  |  |  |  |
Discount rate | 5.61 | % |  | 4.97 | % |  | 5.16 | %
Health care cost trend rate - pre-65 | 7.50 | % |  | 7.00 | % |  | 6.25 | %
Health care cost trend rate - post-65 | 6.50 | % |  | 6.00 | % |  | 5.50 | %
Prescription drug cost increases | 11.75 | % |  | 9.00 | % |  | 8.25 | %
Summary of the Components of Net Periodic Benefit Cost and Cumulative Other Comprehensive Loss Related to Postretirement Benefits Other than Pensions | The following table summarizes the components of the net periodic benefit credit and changes recognized in AOCI related to domestic other postretirement benefits:
| 2025 |  | 2024 |  | 2023
Net periodic benefit credit: |  |  |  |  |
Service cost | $ | 0.2 |  |  | $ | 0.5 |  |  | $ | 0.6 |
Interest cost | 6.7 |  |  | 6.8 |  |  | 7.4 |
Amortization of actuarial (gains) losses | (2.4) |  |  | (0.4) |  |  | 0.1 |
Amortization of prior service credit | (14.3) |  |  | (23.9) |  |  | (23.9) |
Net periodic benefit credit | (9.8) |  |  | (17.0) |  |  | (15.8) |
Other changes in benefit obligation recognized in AOCI (before taxes): |  |  |  |  |
Net actuarial gain arising during the year | (2.3) |  |  | (8.6) |  |  | (8.0) |
Amortization of actuarial gains (losses) | 2.4 |  |  | 0.4 |  |  | (0.1) |
Amortization of prior service credit | 14.3 |  |  | 23.9 |  |  | 23.9 |
Total recognized in AOCI | 14.4 |  |  | 15.7 |  |  | 15.8 |
Total recognized in net periodic benefit cost (credit) and AOCI | $ | 4.6 |  |  | $ | (1.3) |  |  | $ | — |
Summary of the Expected Retiree Health Care Benefit Cash Payments | The Company expects to make retiree health care benefit cash payments for domestic other postretirement benefits as follows:
2026 | $ | 14.1 |
2027 | 14.4 |
2028 | 14.0 |
2029 | 13.1 |
2030 | 11.8 |
2031 through 2035 | 41.9 |
Total expected benefit cash payments | $ | 109.3 |

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- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-5 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 20 -Topic 715 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-3 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-4 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-2 + Details
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