Revenue (Narrative) (Details)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Change in Accounting Estimate [Line Items]
Revenue, performance obligation, payment terms, days from date of shipment, minimum	30 days
Revenue, performance obligation, payment terms, days from date of shipment, maximum	70 days
Revenue, performance obligation, payment terms, financing component, period between transfer of control and payment receipt (or less)	1 year
Revenue, performance obligation, sales rebate payment period (up to)	6 months
Revenue, performance obligation, sales returns, product expiration date	24 months
Revenue, performance obligation, sales returns, average inventory level (or less)	1 month
Revenue, performance obligation, sales returns, percentage of net revenue (less than)	0.02	0.02	0.02
U.S. \| Sales returns, rebates, and discounts
Change in Accounting Estimate [Line Items]
Revenue, information used to determine revenue recognized, change in accounting estimate, percent	1.00%	2.00%	1.00%
Three Largest Wholesales \| Revenue Benchmark \| Minimum
Change in Accounting Estimate [Line Items]
Concentration risk, percentage	15.00%	15.00%	15.00%
Three Largest Wholesales \| Revenue Benchmark \| Maximum
Change in Accounting Estimate [Line Items]
Concentration risk, percentage	20.00%	20.00%	20.00%
Three Largest Wholesales \| Accounts Receivable \| Minimum
Change in Accounting Estimate [Line Items]
Concentration risk, percentage	19.00%	19.00%
Three Largest Wholesales \| Accounts Receivable \| Maximum
Change in Accounting Estimate [Line Items]
Concentration risk, percentage	27.00%	27.00%

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Revenue, Performance Obligation, Payment Terms, Financing Component, Period Between Transfer Of Control And Payment Receipt

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Revenue, Performance Obligation, Sales Returns, Average Inventory Level

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Revenue, Performance Obligation, Sales Returns, Percentage Of Net Revenue

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Revenue from Contract, Payment Term

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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.

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