Income Taxes (Reconciliation of U.S. Federal Tax to Effective Tax Rate) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Effective tax rate reconciliation
Statutory U.S. federal tax rate	21.00%	21.00%	21.00%
Increase (decrease) in rate resulting from:
State and local income taxes, net of related federal taxes	2.40%	2.50%	0.50%
Federal tax rate differential	(0.30%)	0.40%	(2.10%)
U.S. tax rate change and other tax law impacts	0.40%	0.50%	56.20%
Effect of noncontrolling interest	(3.90%)	(4.20%)	(17.00%)
Derivative instruments and hedging activities	(1.30%)	0.40%	(11.80%)
U.S. income taxes on foreign earnings	(0.10%)	0.70%	(1.80%)
Nondeductible compensation	1.20%	1.90%	(5.50%)
Unrecognized tax benefits	8.00%	2.10%	(72.20%)
Valuation allowance	0.70%	0.10%	(1.90%)
Foreign tax credits	(2.10%)	(1.30%)	(0.50%)
Research and development and other tax credits	(7.00%)	(5.00%)	75.60%
Equity method investments	0.80%	(0.60%)	(0.10%)
Other, net	0.60%	(0.30%)	(0.10%)
Effective tax rate	20.40%	18.20%	40.30%
COVID-19 Pandemic
Increase (decrease) in rate resulting from:
U.S. tax rate change and other tax law impacts			$ 14.8

Effective Income Tax Rate Reconciliation, Derivative Instruments and Hedging Activities, Percent

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Effective Income Tax Rate Reconciliation, Federal Tax Rate Differential, Percent

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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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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to equity in earnings (loss) of unconsolidated subsidiaries exempt from income taxes.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.

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