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Organization and Basis of Presentation - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) GeographicMarket Country	Jan. 01, 2020 USD ($)	Jan. 01, 2019 USD ($)	Dec. 31, 2018 USD ($)
Basis Of Presentation And Organization [Line Items]
Number of geographical area covered \| GeographicMarket	80
Number of countries distribution occur through vendors \| Country	40
Accumulated deficit	$ (775)			$ (678)
Right-of-use assets net	72
Lease liabilities	$ 72
ASC Topic 326 [Member] \| Subsequent Event [Member] \| Maximum [Member]
Basis Of Presentation And Organization [Line Items]
Accumulated deficit		$ 10
ASC Topic 842
Basis Of Presentation And Organization [Line Items]
Right-of-use assets net			$ 66
Deferred rent			1
Lease liabilities			$ 67