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Benefit Plans - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |  |  |
Settlements | $ 0.0 | $ 49.6 | $ 0.0 | $ 50.8
Pension benefits |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |  |  |
Settlements | $ 0.0 | $ 49.6 | 0.0 | $ 50.8
U.S. plans |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |  |  |
Contributions by employer |  |  | $ 6.5 |

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