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Pension, Health Care and Other Postretirement Benefits - Narrative (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 USD ($) pension_plan employee | Dec. 31, 2021 USD ($) employee | Dec. 31, 2020 USD ($) employee | Dec. 31, 2019 USD ($)
Minimum | Equity Securities |  |  |  |
Expected defined benefit payments |  |  |  |
Target allocation percentage of plan assets in equity securities | 35.00% |  |  |
Minimum | Fixed Income Securities |  |  |  |
Expected defined benefit payments |  |  |  |
Target allocation percentage of plan assets in equity securities | 35.00% |  |  |
Minimum | Other Securities |  |  |  |
Expected defined benefit payments |  |  |  |
Target allocation percentage of plan assets in equity securities | 0.00% |  |  |
Maximum | Equity Securities |  |  |  |
Expected defined benefit payments |  |  |  |
Target allocation percentage of plan assets in equity securities | 65.00% |  |  |
Maximum | Fixed Income Securities |  |  |  |
Expected defined benefit payments |  |  |  |
Target allocation percentage of plan assets in equity securities | 55.00% |  |  |
Maximum | Other Securities |  |  |  |
Expected defined benefit payments |  |  |  |
Target allocation percentage of plan assets in equity securities | 5.00% |  |  |
Postretirement Health Coverage |  |  |  |
Health care plans |  |  |  |
Number of active employees entitled to receive benefits under health care plans | employee | 30,009 | 29,016 | 27,782 |
Cost of benefits includes claims incurred and claims incurred but not reported under health care plans | $ 347.4 | $ 336.0 | $ 298.8 |
Defined Benefit Pension |  |  |  |
Health care plans |  |  |  |
Fair value of plan assets | 232.1 | 341.9 | 356.4 |
Expected defined benefit payments |  |  |  |
Expected cash payments, 2023 | 15.4 |  |  |
Expected cash payments, 2024 | 16.4 |  |  |
Expected cash payments, 2025 | 17.4 |  |  |
Expected cash payments, 2026 | 18.5 |  |  |
Expected cash payments, 2027 | 19.4 |  |  |
Expected cash payments, 2028-2032 | 114.9 |  |  |
Amortization of actuarial losses | (1.1) |  |  |
Amortization of prior service cost (credit) | 1.1 |  |  |
Defined Benefit Pension | Domestic Defined Benefit Pension Plan |  |  |  |
Health care plans |  |  |  |
Contributions by company | 88.9 | 85.3 | 77.0 |
Projected benefit obligation | 91.7 | 120.8 | 118.6 | $ 103.0
Fair value of plan assets | 119.4 | 155.2 | 144.3 | 125.9
Excess (deficient) plan assets over projected benefit obligations | 27.7 | 34.4 | 25.7 |
Accumulated benefit obligation | $ 90.3 | 117.0 | 114.2 |
Defined Benefit Pension | Domestic Defined Benefit Pension Plan | Minimum |  |  |  |
Health care plans |  |  |  |
Contributions by company (percentage) | 2.00% |  |  |
Defined Benefit Pension | Domestic Defined Benefit Pension Plan | Maximum |  |  |  |
Health care plans |  |  |  |
Contributions by company (percentage) | 7.00% |  |  |
Defined Benefit Pension | Foreign Defined Benefit Pension Plans |  |  |  |
Health care plans |  |  |  |
Contributions by company | $ 19.4 | 17.9 | 22.5 |
Projected benefit obligation | 230.4 | 362.7 | 401.1 | 360.7
Fair value of plan assets | 223.6 | 328.4 | 318.2 | 288.1
Excess (deficient) plan assets over projected benefit obligations | $ (6.8) | (34.3) | (82.9) |
Number of defined benefit plans | pension_plan | 34 |  |  |
Accumulated benefit obligation | $ 209.3 | 334.8 | 370.2 |
Expected defined benefit payments |  |  |  |
Estimated future employer contributions | 5.5 |  |  |
Defined Benefit Pension | Overfunded Plan | Domestic Defined Benefit Pension Plan |  |  |  |
Health care plans |  |  |  |
Projected benefit obligation | 91.7 |  |  |
Fair value of plan assets | 119.4 |  |  |
Excess (deficient) plan assets over projected benefit obligations | 27.7 |  |  |
Defined Benefit Pension | Unfunded Plan | Foreign Defined Benefit Pension Plans |  |  |  |
Health care plans |  |  |  |
Projected benefit obligation | 78.5 |  |  |
Fair value of plan assets | 20.0 |  |  |
Excess (deficient) plan assets over projected benefit obligations | $ (58.5) |  |  |
Number of foreign defined benefit pension plans unfunded or underfunded | pension_plan | 27 |  |  |
Accumulated benefit obligation | $ 65.8 |  |  |
Postretirement Benefits Other than Pensions |  |  |  |
Health care plans |  |  |  |
Projected benefit obligation | 153.8 | $ 276.4 | $ 291.6 | $ 280.5
Expected defined benefit payments |  |  |  |
Expected cash payments, 2023 | 14.5 |  |  |
Expected cash payments, 2024 | 15.0 |  |  |
Expected cash payments, 2025 | 15.5 |  |  |
Expected cash payments, 2026 | 15.4 |  |  |
Expected cash payments, 2027 | 14.9 |  |  |
Expected cash payments, 2028-2032 | 59.3 |  |  |
Amortization of actuarial losses | 0.1 |  |  |
Amortization of prior service cost (credit) | $ (24.0) |  |  |
Number of retired employees entitled to receive postretirement benefits | employee | 3,409 | 3,410 | 3,465 |
Defined benefit plan ultimate health care cost trend rate and prescription drug cost increase rate (percentage) | 4.50% |  |  |

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