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Supplementary Data Other Expense, Net (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Other Expense, Net [Abstract]
Loss on Extinguishment of Debt	$ 0	$ 0	$ (74,000,000.0)	$ 0
Net losses on sales of businesses	(4,400,000)	(8,600,000)	(18,600,000)	(51,800,000)
Other Expense, Net, Other	(6,700,000)	2,700,000	(15,700,000)	2,800,000
Other Nonoperating Income (Expense)	$ 2,300,000	$ (11,300,000)	$ (76,900,000)	$ (54,600,000)

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Other Expense, Net [Abstract]

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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