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Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details) | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Tax Disclosure [Abstract] |  |  |
U.S. federal statutory rate | 21.00% | 21.00% | 21.00%
State income tax, net of federal tax benefit | 2.40% | 2.30% | 2.60%
Taxation on international earnings | (1.00%) | (1.10%) | (0.80%)
Foreign derived intangible income | (1.10%) | (1.10%) | (1.30%)
Share-based compensation from settlements | (5.90%) | (3.60%) | (4.70%)
Research and development credit | (0.80%) | (0.80%) | (0.90%)
Impact of Switzerland tax reform | (3.30%) | 0.00% | 0.00%
State income tax carryforwards | 0.00% | 0.00% | (0.20%)
Other, net | 0.80% | 1.40% | 1.90%
Effective tax rate | 12.10% | 18.10% | 17.60%

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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=84230637&loc=d3e32687-109319 + Details
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