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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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.

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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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Product, Geographic and Other Revenue Information - Narrative (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Apr. 30, 2021	Apr. 04, 2021	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Deferred revenues		$ 2,052	$ 1,113
BNT162b2 alliance revenues and direct sales [Member] \| Revenue Benchmark \| Product concentration risk [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk		14.00%
BNT162b2 alliance revenues and direct sales [Member] \| Trade accounts receivable [Member] \| Product concentration risk [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk		12.00%
Government and Government Sponsored [Member] \| BNT162b2 alliance revenues and direct sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Deferred revenues		$ 1,900	$ 957
Deferred revenue recognized		$ 192
Government and Government Sponsored [Member] \| BNT162b2 alliance revenues and direct sales [Member] \| Subsequent Event [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Increase in deferred revenue	$ 3,800