CONSOLIDATED STATEMENT OF INCOME - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement [Abstract]
Net revenues	$ 8,592	$ 8,790	$ 8,257
Cost of net revenues	1,771	1,663	1,492
Gross profit	6,821	7,127	6,765
Operating expenses:
Sales and marketing	2,267	2,442	2,144
Product development	923	983	915
General and administrative	1,122	889	880
Provision for transaction losses	271	262	236
Amortization of acquired intangible assets	41	75	136
Total operating expenses	4,624	4,651	4,311
Income from operations	2,197	2,476	2,454
Interest and other, net	209	39	117
Income from continuing operations before income taxes	2,406	2,515	2,571
Provision for income taxes	(459)	(3,380)	(504)
Income (loss) from continuing operations	1,947	(865)	2,067
Income (loss) from discontinued operations, net of income taxes	(222)	911	789
Net income	$ 1,725	$ 46	$ 2,856
Income (loss) per share - basic:
Continuing operations (in usd per share)	$ 1.61	$ (0.69)	$ 1.60
Discontinued operations (in usd per share)	(0.18)	0.73	0.60
Net income per share - basic (in usd per share)	1.43	0.04	2.20
Income (loss) per share - diluted:
Continuing operations (in usd per share)	1.60	(0.69)	1.58
Discontinued operations (in usd per share)	(0.18)	0.73	0.60
Net income per share - diluted (in usd per share)	$ 1.42	$ 0.04	$ 2.18
Weighted average shares:
Basic (in shares)	1,208	1,251	1,295
Diluted (in shares)	1,220	1,251	1,313