CONDENSED CONSOLIDATED STATEMENT OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Net revenues	$ 2,137	$ 2,061
Cost of net revenues	477	411
Gross profit	1,660	1,650
Operating expenses:
Sales and marketing	538	519
Product development	239	221
General and administrative	209	302
Provision for transaction losses	52	69
Amortization of acquired intangible assets	8	10
Total operating expenses	1,046	1,121
Income from operations	614	529
Interest and other, net	(23)	10
Income from continuing operations before income taxes	591	539
Provision for income taxes	(109)	(90)
Income from continuing operations	482	449
Income from discontinued operations, net of income taxes	0	177
Net income	$ 482	$ 626
Income per share - basic:
Continuing operations (in usd per share)	$ 0.42	$ 0.37
Discontinued operations (in usd per share)	0.00	0.14
Net income per share - basic (usd per share)	0.42	0.51
Income per share - diluted:
Continuing operations (in usd per share)	0.41	0.37
Discontinued operations (in usd per share)	0.00	0.14
Net income per share - diluted (in usd per share)	$ 0.41	$ 0.51
Weighted average shares:
Basic (in shares)	1,159	1,216
Diluted (in shares)	1,170	1,229