Segments (Details) $ in Millions	3 Months Ended
	Mar. 31, 2017 USD ($) segment	Mar. 31, 2016 USD ($)
Segment Reporting [Abstract]
Number of operating segments | segment	1
Number of reportable segments | segment	1
Segment Reporting Information [Line Items]
Total net transaction revenues	$ 1,729	$ 1,677
Total marketing services and other revenues	488	460
Total net revenues	2,217	2,137
Marketplace
Segment Reporting Information [Line Items]
Total net transaction revenues	1,525	1,500
Total marketing services and other revenues	283	274
StubHub
Segment Reporting Information [Line Items]
Total net transaction revenues	204	177
Classifieds
Segment Reporting Information [Line Items]
Total marketing services and other revenues	199	186
StubHub, Corporate and other
Segment Reporting Information [Line Items]
Total marketing services and other revenues	$ 6	$ 0