Disaggregation of Revenue - Summary of Disaggregated Revenue (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation Of Revenue [Line Items]
Revenue	$ 134	$ 656	$ 323	$ 1,428
Core Marketplace Revenue
Disaggregation Of Revenue [Line Items]
Revenue	54	378	144	855
ProductBoost Revenue
Disaggregation Of Revenue [Line Items]
Revenue	11	50	25	100
Marketplace Revenue
Disaggregation Of Revenue [Line Items]
Revenue	65	428	169	955
Logistics Revenue
Disaggregation Of Revenue [Line Items]
Revenue	$ 69	$ 228	$ 154	$ 473

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details