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Income Taxes (Narrative) (Details) - USD ($) $ in Millions | Oct. 07, 2022 | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | --- | ---
Income Tax Contingency [Line Items] |  |  |
Unrecognized tax benefits |  | $ 443.3 |
UTB that would impact effective tax rate |  | 346.0 |
Reduction in UTB |  | $ 348.0 |
Income tax penalties and interest expense | $ 110.0 |  |
Income tax examination, liability (refund) adjustment from settlement with taxing authority |  |  | $ 315.0
Tax Year 2018 | Income Tax Contingency |  |  |
Income Tax Contingency [Line Items] |  |  |
Damages sought | $ 284.0 |  |

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