Earnings (Loss) Per Share - Basic and Diluted Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings Per Share [Abstract]
Net income (loss) attributable to Expedia Group, Inc.	$ 385	$ (185)	$ 240	$ (307)
Earnings (loss) per share attributable to Expedia Group, Inc. available to common stockholders:
Basic (in dollars per share)	$ 2.62	$ (1.17)	$ 1.60	$ (1.96)
Diluted (in dollars per share)	$ 2.54	$ (1.17)	$ 1.55	$ (1.96)
Weighted average number of shares outstanding (000's):
Basic (in shares)	147,168	157,290	149,808	156,831
Dilutive effect of:
Convertible notes (in shares)	3,921	0	3,921	0
Stock-based awards (in shares)	748	0	690	0
Other dilutive securities (in shares)	7	0	6	0
Diluted (in shares)	151,844	157,290	154,425	156,831