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v3.24.0.1

Pension Benefit Obligations (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Percentage of Plan Assets: |  |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Nonoperating Income | Other Nonoperating Income
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Nonoperating Income | Other Nonoperating Income
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Nonoperating Income | Other Nonoperating Income
United States |  |
Percentage of Plan Assets: |  |
Interest cost on projected benefit obligation | $ 2.4 | $ 2.5
Expected return on plan assets | (1.4) | (1.5)
Amortization of net loss/(gain) | 0.8 | 0.9
Net periodic benefit cost (credit) | 1.8 | 1.9
Change in benefit obligation: |  |
Employer contributions | 2.3 |
Expected remaining scheduled annual employer contributions for the current fiscal year | 10.6 |
International |  |
Percentage of Plan Assets: |  |
Service costs | 0.1 | 0.1
Interest cost on projected benefit obligation | 10.7 | 11.5
Expected return on plan assets | (14.1) | (14.7)
Amortization of net loss/(gain) | (0.6) | (0.1)
Net periodic benefit cost (credit) | (3.9) | $ (3.2)
Change in benefit obligation: |  |
Employer contributions | 6.2 |
Expected remaining scheduled annual employer contributions for the current fiscal year | $ 16.0 |

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