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Income Taxes - Reconciliation of Effective Income Tax Rate (Details) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Reconciliation of Effective Income Tax Rate |  |  |
Statutory U.S. tax rate | 21.00% | 21.00% | 21.00%
State income taxes - net of federal benefit | 0.90% | 1.20% | 0.50%
International income taxes - net | (1.20%) | (1.20%) | 0.20%
Global Intangible Low Taxed Income (GILTI) | 0.70% | 0.80% | 1.80%
Foreign Derived Intangible Income (FDII) | (3.10%) | (1.80%) | (2.90%)
U.S. research and development credit | (0.70%) | (1.00%) | (1.70%)
Reserves for tax contingencies | 0.60% | 0.50% | 2.30%
Employee share-based payments | (0.60%) | (0.50%) | (1.30%)
All other - net | 0.20% | 0.70% | (0.20%)
Effective worldwide tax rate | 17.80% | 19.70% | 19.70%

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- Definition Percentage of reported income tax expense (benefit) attributable to the Foreign Derived Intangible Income (FDII) by the Tax Cuts and Jobs Act of 2017. + References No definition available. + Details
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.4) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 + Details
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