Segment Reporting (Schedule of Automotive Customers Individually Accounted For 10% or More of Net Sales) (Details) - automotiveCustomer	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenue, Major Customer [Line Items]
Percentage net sales invoiced and paid in foreign currencies	7.00%	7.00%	8.00%
Number of customers which individually accounted for 10% or more of net sales	3
Customer concentration risk \| Toyota Motor Company
Revenue, Major Customer [Line Items]
Percentage of revenue individually accounted by customers	14.00%	13.00%	13.00%
Customer concentration risk \| Volkswagen Group
Revenue, Major Customer [Line Items]
Percentage of revenue individually accounted by customers	14.00%	14.00%	15.00%
Customer concentration risk \| General Motors
Revenue, Major Customer [Line Items]
Percentage of revenue individually accounted by customers	12.00%	11.00%	10.00%
Customer concentration risk \| Daimler Group
Revenue, Major Customer [Line Items]
Percentage of revenue individually accounted by customers	10.00%	10.00%	10.00%
Customer concentration risk \| Ford Motor Company
Revenue, Major Customer [Line Items]
Percentage of revenue individually accounted by customers	10.00%	10.00%	10.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

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