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Intangible Asset, Measurement Input

No definition available.

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Royalty rate

No definition available.

Name:	mrk_RoyaltyRate
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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of liability recognized arising from contingent consideration in a business combination.

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For transactions that are recognized separately from the acquisition of assets and assumptions of liabilities in the business combination, such as related to pre-existing relationships with the acquiree, this element represents the disclosure of the amount of acquisition related costs which have been expensed.

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Percentage of equity in the acquiree held by the acquirer immediately before the acquisition date in a business combination.

No definition available.

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Data Type:	num:percentItemType
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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

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Data Type:	num:percentItemType
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Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

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Data Type:	num:percentItemType
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Amount of income or gain included in net income that result in no cash inflow (outflow), classified as other.

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Amount of cash inflow from the sale and collection of receivables classified as other.

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The cash inflow from disposal of asset without physical form usually arising from contractual or other legal rights, excluding goodwill.

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The amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. For cash flows, this element primarily pertains to amortization of deferred credits on long-term arrangements. As a noncash item, it is deducted from net income when calculating cash provided by or used in operations using the indirect method.

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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.

No definition available.

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Name:	srt_ProductOrServiceAxis=mrk_GardasilGardasil9Member
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