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Divestitures, Investment Activities, and Goodwill - Schedule of Accumulated Impairment Losses of Goodwill (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
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Goodwill and Intangible Assets Disclosure [Abstract] |  |  |
Goodwill, gross | $ 2,034.6 | $ 2,125.6 | $ 3,030.6
Accumulated impairment losses | 0.0 | (29.6) | (464.0)
Goodwill, net | $ 2,034.6 | $ 2,096.0 | $ 2,566.6

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