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Income Taxes (Summary Of Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Tax Disclosure [Abstract] |  |  |  |
Gross unrecognized tax benefits | $ 264.1 | $ 280.3 | $ 316.4 | $ 328.2
Unrecognized tax benefits, net of tax impacts in other jurisdictions | 251.9 | 264.4 | 293.1 |
Interest and penalties related to uncertain tax positions | 16.6 | 28.0 | 42.8 |
Interest and penalties recognized in the consolidated statements of income | $ (4.0) | $ (3.8) | $ 5.3 |

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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10B -Publisher FASB -URI https://asc.fasb.org//1943274/2147482525/740-10-45-10B + Details
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