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Supplementary Data Other Expense, Net (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other Expense, Net [Abstract]
Gain (Loss) on Extinguishment of Debt	$ 0	$ 0	$ (74,000,000.0)	$ 0
Gain (Loss) on Disposition of Business	(1,700,000)	(19,900,000)	(14,200,000)	(43,200,000)
Other Expense, Net, Other	(6,400,000)	1,600,000	(9,000,000.0)	100,000
Other Nonoperating Income (Expense)	$ 4,700,000	$ (21,500,000)	$ (79,200,000)	$ (43,300,000)

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Other Expense, Net [Abstract]

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Other Expense, Net, Other

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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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