Income Taxes - Differences Between U.S. Federal Statutory Income Tax Rate and Effective Tax Rate on Income Before Income Taxes (Details)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Statutory tax rate	21.00%	21.00%	21.00%
State income taxes, net of federal benefit	1.70%	1.50%	0.00%
Effect of non-U.S. operations	(1.80%)	2.70%	(10.70%)
Intercompany sale of intellectual property	(8.70%)	(13.80%)	0.00%
Change in the reserve for tax contingencies	6.40%	4.70%	15.70%
Law changes	0.018	0	(0.013)
Stock-based compensation expense	(2.80%)	(3.90%)	(5.30%)
Nondeductible meals and entertainment costs	0.30%	1.70%	2.70%
Gains/Losses on divested operations and held-for-sale assets	0.00%	0.00%	12.20%
Limitation on executive compensation	1.30%	2.40%	2.70%
Global intangible low-taxed income, net of foreign tax credits	1.40%	1.90%	0.10%
Foreign-derived intangible income	(0.80%)	(1.00%)	(2.00%)
Goodwill	0.00%	0.00%	(3.80%)
Other items, net	(1.60%)	(1.80%)	1.10%
Effective tax rate	18.20%	15.40%	32.40%

Effective Income Tax Rate Reconciliation, Foreign-Derived Intangible Income, Percent

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Effective Income Tax Rate Reconciliation, Global Intangible Low-Taxed Income, Net Of Foreign Tax Credits

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Effective Income Tax Rate Reconciliation, Intercompany Sale Of Intellectual Property, Percent

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Effective Income Tax Rate Reconciliation, Limitation Of Executive Compensation, 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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
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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 disposition of a business not qualifying as a discontinued operation.

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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 statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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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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Percentage of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to Tax Cuts and Jobs Act.

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