Goodwill and Intangible Assets, Net - Summary of Intangible Assets Acquired in Business Combinations (Details) - USD ($) $ in Millions		Dec. 31, 2024	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible assets with definite lives		$ 195	$ 221
Less: accumulated amortization		(189)	(208)
Intangible assets with definite lives, net		6	13
Intangible assets with indefinite lives	[1]	30	30
Total		$ 36	$ 43

[1] Indefinite-lived intangible assets include trade names and trademarks for Brand Tripadvisor.