CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 398	$ 372	$ 261
Other comprehensive income (loss), net of tax
Currency translation adjustments, net of taxes	(86)	189	(10)
Unrealized losses on available for sale securities, net of taxes	0	(7)	0
Other comprehensive income (loss), net of tax	(86)	182	(10)
Comprehensive income	312	554	251
Less: Comprehensive income (loss) attributable to non-controlling interests	(26)	45	(29)
Comprehensive income attributable to Expedia Group, Inc.	$ 338	$ 509	$ 280