Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents (Note 7)	$ 655	$ 673
Short-term marketable securities (Note 7)	15	35
Accounts receivable and contract assets, net of allowance for doubtful accounts of $21 and $16, respectively (Note 2, Note 4)	212	230
Income taxes receivable (Note 11)		30
Prepaid expenses and other current assets	33	25
Total current assets	915	993
Long-term marketable securities (Note 7)		27
Property and equipment, net (Note 8)	253	263
Intangible assets, net (Note 9)	118	142
Goodwill (Note 9)	756	758
Deferred income taxes, net (Note 11)	27	16
Other long-term assets	98	73
TOTAL ASSETS	2,167	2,272
Current liabilities:
Accounts payable	15	8
Deferred merchant payables (Note 2)	164	156
Deferred revenue (Note 4)	63	60
Accrued expenses and other current liabilities (Note 12)	151	148
Total current liabilities	393	372
Long-term debt (Note 10)		230
Deferred income taxes, net (Note 11)	21	14
Other long-term liabilities (Note 13)	282	293
Total Liabilities	696	909
Commitments and contingencies (Note 14)
Stockholders’ equity: (Note 16)
Preferred stock, $0.001 par value Authorized shares: 100,000,000 Shares issued and outstanding: 0 and 0
Additional paid-in capital	1,037	926
Retained earnings	1,043	926
Accumulated other comprehensive (loss) income	(62)	(42)
Treasury stock-common stock, at cost, 12,056,688 and 9,474,490 shares, respectively	(547)	(447)
Total Stockholders’ Equity	1,471	1,363
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 2,167	$ 2,272