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Divestitures, Investment Activities, and Goodwill - Schedule of Accumulated Impairment Losses of Goodwill (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, gross	$ 2,125.6	$ 3,030.6	$ 3,030.6
Accumulated impairment losses	(29.6)	(464.0)	(464.0)
Goodwill, net	2,096.0	2,566.6
Goodwill, net	$ 2,034.6	$ 2,034.6	$ 2,566.6

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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