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Debt and Lines of Credit - Weighted-average interest rate (Details)	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt and Lines of Credit
Weighted-average interest rate on short-term borrowings	0.40%	0.40%	0.40%

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- References

No definition available.

+ Details

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- Definition

Weighted average interest rate of short-term debt outstanding calculated at point in time.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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