Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating activities:
Net income (loss)	$ (3)	$ (120)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	50	57
Stock-based compensation expense (Note 10)	43	61
Deferred income tax expense (benefit)	14	(29)
Provision for expected credit losses	3	3
Other, net	2	8
Changes in operating assets and liabilities, net:
Accounts receivable and contract assets, prepaid expenses and other assets	(115)	(87)
Accounts payable, accrued expenses and other liabilities	63	48
Deferred merchant payables	220	138
Income tax receivables/payables, net	68	6
Deferred revenue	35	21
Net cash provided by (used in) operating activities	380	106
Investing activities:
Capital expenditures, including capitalized website development	(27)	(25)
Other investing activities, net	1	(1)
Net cash provided by (used in) investing activities	(26)	(26)
Financing activities:
Purchase of capped calls in connection with 2026 Senior Notes (Note 7)	0	(35)
Proceeds from exercise of stock options	0	8
Payment of withholding taxes on net share settlements of equity awards	(9)	(29)
Payments of finance lease obligation and other financing activities, net	(4)	(3)
Net cash provided by (used in) financing activities	(13)	281
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(19)	(4)
Net increase (decrease) in cash, cash equivalents and restricted cash	322	357
Cash, cash equivalents and restricted cash at beginning of period	723	418
Cash, cash equivalents and restricted cash at end of period	1,045	775
2026 Senior Notes
Financing activities:
Proceeds from issuance of 2026 Senior Notes, net of financing costs (Note 7)	$ 0	$ 340