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Pension and Postretirement Benefits (Narrative) (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Percentage of combined expected actuarial losses | 1.00% | 1.00% |  |
Projected benefit obligation | $ 789.9 | $ 789.9 | $ 1,152.1 |
Percentage of non-matching contribution to participants |  | 3.00% |  |
Common Stock |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actual Allocation |  |  | 4.00% |
Savings And Investment Plans |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Employer contributions |  | $ 13.1 | $ 12.0 | $ 11.8
2% Non-Matching Contribution |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Employer contributions |  | $ 15.5 | $ 14.6 | 14.5
Actively Managed U.S. Equities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actual Allocation | 43.00% | 43.00% | 44.00% |
Fixed income securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actual Allocation | 27.00% | 27.00% | 31.00% |
Alternative assets/Other |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actual Allocation | 26.00% | 26.00% | 22.00% |
Pension Plan |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Distributions receivable | $ 43.0 |  |  |
Loss from plan settlement | 7.0 |  |  |
Expected future employer cash contributions | 20.0 | $ 20.0 |  |
Projected benefit obligation | 789.9 | 789.9 | $ 1,152.1 | 1,259.8
Employer contributions |  | 19.7 | 26.7 |
Supplemental Employee Retirement Plan |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Pre-tax settlement gain |  | 0.1 | 0.0 |
Projected benefit obligation | $ 2.2 | 2.2 | 3.7 |
Employer contributions |  | $ 1.0 | $ 0.2 | $ 0.2
United States |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Defined benefit pension plan employees, percentage |  | 12.00% |  |
Percentage of combined expected actuarial losses |  |  | 1.00% |
United States | Pension Plan |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Expected rate of return on plan assets |  | 6.50% | 6.50% | 7.25%
United States | Pension Plan | Actively Managed U.S. Equities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actual Allocation | 64.30% | 64.30% |  |
United States | Pension Plan | Fixed income securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actual Allocation | 22.10% | 22.10% |  |
United States | Pension Plan | Alternative assets/Other |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actual Allocation | 11.40% | 11.40% |  |
United States | Pension Plan | Cash |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actual Allocation | 2.10% | 2.10% |  |
United States | Pension Plan | Minimum | Actively Managed U.S. Equities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Expected rate of return on plan assets |  | 25.00% |  |
United States | Pension Plan | Minimum | Fixed income securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Expected rate of return on plan assets |  | 15.00% |  |
United States | Pension Plan | Minimum | Alternative assets/Other |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Expected rate of return on plan assets |  | 10.00% |  |
United States | Pension Plan | Minimum | Cash |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actual Allocation | 0.00% | 0.00% |  |
United States | Pension Plan | Maximum | Actively Managed U.S. Equities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Expected rate of return on plan assets |  | 75.00% |  |
United States | Pension Plan | Maximum | Fixed income securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Expected rate of return on plan assets |  | 35.00% |  |
United States | Pension Plan | Maximum | Alternative assets/Other |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Expected rate of return on plan assets |  | 35.00% |  |
United States | Pension Plan | Maximum | Cash |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actual Allocation | 10.00% | 10.00% |  |
Foreign Plan |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Defined benefit pension plan employees, percentage |  | 12.00% |  |
Percentage of combined expected actuarial losses | 3.00% | 3.00% |  |
Percentage of combined expected actuarial gains |  |  | 2.00% |
Foreign Plan | Pension Plan |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Expected rate of return on plan assets |  | 4.50% | 4.45% | 5.31%
Foreign Plan | Pension Plan | Actively Managed U.S. Equities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actual Allocation | 15.30% | 15.30% |  |
Foreign Plan | Pension Plan | Fixed income securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actual Allocation | 33.20% | 33.20% |  |
Foreign Plan | Pension Plan | Alternative assets/Other |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actual Allocation | 45.40% | 45.40% |  |
Foreign Plan | Pension Plan | Cash |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actual Allocation | 6.20% | 6.20% |  |

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