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Income Taxes (Reconciliations) (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
U.S. statutory federal rate, expected (benefit) provision	21.00%	21.00%	21.00%
Increase (reduction) in tax rate from:
Tax impact from foreign operations	0.00%	2.00%	7.00%
Noncontrolling interests and equity earnings	41.00%	(3.00%)	0.00%
State and local income taxes, net of federal benefit	2.00%	0.00%	2.00%
Other permanent differences, net	5.00%	4.00%	3.00%
Contingent liability accrual	1.00%	2.00%	1.00%
U.S. taxes on foreign unremitted earnings	1.00%	(1.00%)	3.00%
Change in valuation allowance	(4.00%)	0.00%	(10.00%)
Research and development credits, net of provision	0.00%	0.00%	(5.00%)
Non-deductible goodwill and restructuring charges	0.00%	(130.00%)	0.00%
U.K. statutory rate change	14.00%	0.00%	0.00%
Effective tax rate on income from operations	81.00%	(105.00%)	22.00%

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Effective Income Tax Rate Reconciliation, Non-Deductible Goodwill And Restructuring Charges, Percent

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Increase (Reduction) in Tax Rate [Abstract]

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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