Income Taxes (Summary Of Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions |
12 Months Ended | |||
---|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
Income Tax Disclosure [Abstract] | ||||
Gross unrecognized tax benefits | $ 316.4 | $ 328.2 | $ 388.5 | $ 396.2 |
Unrecognized tax benefits, net of tax impacts in other jurisdictions | 293.1 | 302.4 | 359.6 | |
Interest and penalties related to uncertain tax positions | 42.8 | 43.6 | 53.3 | |
Interest and penalties recognized in the consolidated statements of income | $ 5.3 | $ 7.7 | $ (1.5) |