CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Revenue		$ 3,153	$ 2,880	$ 5,762	$ 5,388
Costs and expenses:
Cost of revenue	[1]	522	498	1,035	985
Selling and marketing	[1]	1,657	1,541	3,192	3,057
Technology and content	[1]	435	400	864	796
General and administrative	[1]	214	196	405	395
Amortization of intangible assets		52	72	104	144
Impairment of goodwill		0	61	0	61
Legal reserves, occupancy tax and other		4	1	14	4
Restructuring and related reorganization charges		4	0	14	0
Operating income (loss)		265	111	134	(54)
Other income (expense):
Interest income		17	16	28	27
Interest expense		(39)	(51)	(80)	(102)
Other, net		(8)	(90)	12	(54)
Total other expense, net		(30)	(125)	(40)	(129)
Income (loss) before income taxes		235	(14)	94	(183)
Provision for income taxes		(48)	5	(7)	25
Net income (loss)		187	(9)	87	(158)
Net (income) loss attributable to non-controlling interests		(4)	10	(7)	22
Net income (loss) attributable to Expedia Group, Inc.		$ 183	$ 1	$ 80	$ (136)
Earnings (loss) per share attributable to Expedia Group, Inc. available to common stockholders
Basic (in dollars per share)		$ 1.23	$ 0.01	$ 0.54	$ (0.90)
Diluted (in dollars per share)		$ 1.21	$ 0.01	$ 0.53	$ (0.90)
Shares used in computing earnings (loss) per share (000's):
Basic (in shares)		149,049	150,076	148,468	150,942
Diluted (in shares)		151,561	152,617	151,057	150,942

[1] (1) Includes stock-based compensation as follows:               Cost of revenue $ 3
  $ 3
  $ 6
  $ 5
Selling and marketing 12
  12
  23
  23
Technology and content 19
  16
  38
  31
General and administrative 25
  19
  48
  41