Cover
Cover - USD ($) $ in Millions | Dec. 31, 2020 | Jan. 31, 2021 | Jun. 30, 2020 |
Document Information [Line Items] | |||
Document Type | 10-K/A | ||
Amendment Flag | false | ||
Document Annual Report | true | ||
Document Transition Report | false | ||
Document Period End Date | Dec. 31, 2020 | ||
Document Fiscal Period Focus | FY | ||
Document Fiscal Year Focus | 2020 | ||
Current Fiscal Year End Date | --12-31 | ||
Entity File Number | 001-36603 | ||
Entity Registrant Name | LIBERTY TRIPADVISOR HOLDINGS, INC. | ||
Entity Central Index Key | 0001606745 | ||
Entity Tax Identification Number | 46-3337365 | ||
Entity Incorporation, State or Country Code | DE | ||
Entity Address, Address Line One | 12300 Liberty Boulevard | ||
Entity Address, City or Town | Englewood | ||
Entity Address, State or Province | CO | ||
Entity Address, Postal Zip Code | 80112 | ||
City Area Code | 720 | ||
Local Phone Number | 875-5200 | ||
Entity Well-known Seasoned Issuer | No | ||
Entity Voluntary Filers | No | ||
Entity Current Reporting Status | Yes | ||
Entity Interactive Data Current | Yes | ||
Entity Filer Category | Accelerated Filer | ||
Entity Small Business | false | ||
Entity Emerging Growth Company | false | ||
Entity Shell Company | false | ||
Entity Public Float | $ 153 | ||
ICFR Auditor Attestation Flag | true | ||
Common Class A [Member] | |||
Document Information [Line Items] | |||
Title of 12(b) Security | Series A Common Stock | ||
Trading Symbol | LTRPA | ||
Security Exchange Name | NASDAQ | ||
Entity Common Stock, Shares Outstanding | 72,227,256 | ||
Common Class B [Member] | |||
Document Information [Line Items] | |||
Title of 12(b) Security | Series B Common Stock | ||
Trading Symbol | LTRPB | ||
Security Exchange Name | NASDAQ | ||
Entity Common Stock, Shares Outstanding | 2,973,665 |