Business Combinations - Schedule of Components of Intangible Assets Acquired (Detail) - Spot, Inc. $ in Millions	Jul. 09, 2020 USD ($)
Business Acquisition [Line Items]
Intangible assets	$ 84
Developed Technology
Business Acquisition [Line Items]
Intangible assets	$ 53
Estimated useful life (years)	5 years
Customer Contracts/Relationships
Business Acquisition [Line Items]
Intangible assets	$ 28
Estimated useful life (years)	5 years
Trade Name
Business Acquisition [Line Items]
Intangible assets	$ 3
Estimated useful life (years)	3 years