Earnings Per Share - Basic and Diluted Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Net income (loss) attributable to Expedia Group, Inc.	$ 12	$ (2,612)	$ 565
Preferred stock dividend	(67)	(75)	0
Loss on redemption of preferred stock	(214)	0	0
Net income (loss) attributable to Expedia Group, Inc. common stockholders	$ (269)	$ (2,687)	$ 565
Earnings (loss) per share attributable to Expedia Group, Inc. available to common stockholders:
Basic (in dollars per share)	$ (1.80)	$ (19.00)	$ 3.84
Diluted (in dollars per share)	$ (1.80)	$ (19.00)	$ 3.77
Weighted average number of shares outstanding (000's):
Basic (in shares)	149,734	141,414	147,194
Dilutive effect of:
Stock-based awards (in shares)	0	0	2,688
Other dilutive securities (in shares)	0	0	2
Diluted (in shares)	149,734	141,414	149,884