Annual report pursuant to Section 13 and 15(d)

Segment Information (Details 2)

v2.4.1.9
Segment Information (Details 2) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Segments                      
Revenue $ 325us-gaap_SalesRevenueNet $ 375us-gaap_SalesRevenueNet $ 335us-gaap_SalesRevenueNet $ 294us-gaap_SalesRevenueNet $ 250us-gaap_SalesRevenueNet $ 274us-gaap_SalesRevenueNet $ 263us-gaap_SalesRevenueNet $ 247us-gaap_SalesRevenueNet $ 1,329us-gaap_SalesRevenueNet $ 1,034us-gaap_SalesRevenueNet $ 165us-gaap_SalesRevenueNet
Assets 7,381us-gaap_Assets       7,089us-gaap_Assets       7,381us-gaap_Assets 7,089us-gaap_Assets  
United States                      
Segments                      
Revenue                 670us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_US 		541us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_US 		136us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_US
Assets 134us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= country_US 		      32us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= country_US 		      134us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= country_US 		32us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= country_US 		 
United Kingdom                      
Segments                      
Revenue                 191us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_GB 		141us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_GB 		5us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_GB
Assets 14us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= country_GB 		      7us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= country_GB 		      14us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= country_GB 		7us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= country_GB 		 
Other countries                      
Segments                      
Revenue                 468us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_XX 		352us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_XX 		24us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_XX
Assets 148us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= country_XX 		      39us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= country_XX 		      148us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= country_XX 		39us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= country_XX 		 
Trip Advisor                      
Segments                      
Revenue                 1,246us-gaap_SalesRevenueNet
/ dei_LegalEntityAxis
= ltrpa_TripadvisorIncMember 		945us-gaap_SalesRevenueNet
/ dei_LegalEntityAxis
= ltrpa_TripadvisorIncMember 		36us-gaap_SalesRevenueNet
/ dei_LegalEntityAxis
= ltrpa_TripadvisorIncMember
Assets 7,352us-gaap_Assets
/ dei_LegalEntityAxis
= ltrpa_TripadvisorIncMember 		      7,057us-gaap_Assets
/ dei_LegalEntityAxis
= ltrpa_TripadvisorIncMember 		      7,352us-gaap_Assets
/ dei_LegalEntityAxis
= ltrpa_TripadvisorIncMember 		7,057us-gaap_Assets
/ dei_LegalEntityAxis
= ltrpa_TripadvisorIncMember 		 
Corporate and Other                      
Segments                      
Revenue                 83us-gaap_SalesRevenueNet
/ dei_LegalEntityAxis
= us-gaap_CorporateAndOtherMember 		89us-gaap_SalesRevenueNet
/ dei_LegalEntityAxis
= us-gaap_CorporateAndOtherMember 		129us-gaap_SalesRevenueNet
/ dei_LegalEntityAxis
= us-gaap_CorporateAndOtherMember
Assets $ 29us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_CorporateAndOtherMember 		      $ 32us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_CorporateAndOtherMember 		      $ 29us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_CorporateAndOtherMember 		$ 32us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_CorporateAndOtherMember