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Discontinued Operations - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 17, 2021
Dec. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Proceeds from divestiture of businesses     $ 1,706.8 $ 1.6 $ 40.3
Discontinued Operations, Disposed of by Sale | Healthcare Business          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Proceeds from divestiture of businesses $ 1,705.9        
Income (loss) from discontinued operations, net of tax, including portion attributable to noncontrolling interest $ 1,400.0   1,031.7 49.8 52.6
Gain on sale of discontinued operations, net of tax   $ 982.5 $ 982.5 $ 0.0 $ 0.0