CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net loss	$ (150)	$ (239)
Adjustments to reconcile net loss to net cash provided by used in operating activities:
Noncash inventory write downs	3
Depreciation and amortization	4	5
Noncash lease expense	3	7
Impairment of lease assets and property and equipment	6	6
Stock-based compensation expense	27	74
Other	(1)	(1)
Changes in operating assets and liabilities:
Funds receivable	5	37
Prepaid expenses, other current and noncurrent assets	2	33
Accounts payable	(12)	(179)
Merchants payable	(52)	(141)
Accrued and refund liabilities	(42)	(136)
Lease liabilities	(4)	(7)
Other current and noncurrent liabilities	(2)	(17)
Net cash used in operating activities	(213)	(558)
Cash flows from investing activities:
Purchases of property and equipment and development of internal use software	(2)	(1)
Purchases of marketable securities	(226)	(124)
Maturities of marketable securities	137	123
Net cash used in investing activities	(91)	(2)
Cash flows from financing activities:
Proceeds from issuance of common stock through employee equity incentive plans	1	6
Payment of taxes related to RSU settlement	(5)	(5)
Other		(1)
Net cash used in financing activities	(4)
Foreign currency effects on cash, cash equivalents and restricted cash	(9)
Net decrease in cash, cash equivalents and restricted cash	(317)	(560)
Cash, cash equivalents and restricted cash at beginning of period	1,018	1,965
Cash, cash equivalents and restricted cash at end of period	701	1,405
Reconciliation of cash, cash equivalents, and restricted cash to the condensed consolidated balance sheets:
Cash and cash equivalents	693	1,405
Restricted cash included in prepaid and other current assets in the condensed consolidated balance sheets	8
Cash, cash equivalents and restricted cash at end of period	701	1,405
Supplemental cash flow disclosures:
Cash paid for income taxes, net of refunds	$ 6	$ 4