Annual report pursuant to Section 13 and 15(d)

Debt (Details)

v3.8.0.1
Debt (Details)
shares in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 02, 2018
USD ($)
Dec. 31, 2017
CNY (¥)
shares
Nov. 07, 2017
Sep. 07, 2016
USD ($)
Jun. 23, 2016
USD ($)
Aug. 21, 2014
USD ($)
agreement
Feb. 28, 2018
USD ($)
Jun. 30, 2015
USD ($)
Mar. 31, 2017
USD ($)
Dec. 31, 2017
USD ($)
item
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2017
USD ($)
shares
May 31, 2017
USD ($)
Jun. 26, 2015
USD ($)
Debt Financing                              
Total debt                     $ 635,000,000   $ 711,000,000    
Less debt classified as current                     (80,000,000)   (7,000,000)    
Total long-term debt                     555,000,000   704,000,000    
Repayments of long term debt                   $ 369,000,000 439,000,000 $ 431,000,000      
Borrowings of debt                   $ 435,000,000 440,000,000 $ 293,000,000      
Trip Advisor                              
Debt Financing                              
Foreign Earnings Repatriated $ 325,000,000           $ 325,000,000                
TripAdvisor's Chinese subsidiaries                              
Debt Financing                              
Number of credit facilities | item                   2          
Margin loan member                              
Debt Financing                              
Total debt                     203,000,000   210,000,000    
Paid-in-Kind Interest                   $ 7,000,000          
Margin loan member | TripSPV                              
Debt Financing                              
Debt instrument, number of instruments | agreement           2                  
Total borrowings           $ 400,000,000                  
Margin loan member | TripSPV | Redemption period one                              
Debt Financing                              
Initial redemption period           6 months                  
Margin loan member | LIBOR | TripSPV                              
Debt Financing                              
Variable rate basis           LIBOR                  
Margin loan member | LIBOR | TripSPV | Redemption period one                              
Debt Financing                              
Margin           3.65%                  
Margin loan member | LIBOR | TripSPV | Redemption period two                              
Debt Financing                              
Margin           3.25%                  
Margin Loan Amendment 1                              
Debt Financing                              
Total debt         $ 200,000,000                    
Debt Instrument Term         3 years                    
Variable rate basis         LIBOR.                    
Margin         2.00%                    
Outstanding Margin Loan Balance If Initial Margin Call Threshold is Met         $ 150,000,000                    
Margin Loan Amendment 2                              
Debt Financing                              
Margin     2.40%                        
Chinese credit facilities | TripAdvisor's Chinese subsidiaries                              
Debt Financing                              
Total debt                     7,000,000   7,000,000    
2015 Credit Facilities | Revolving Credit Facility | Trip Advisor                              
Debt Financing                              
Total debt                     164,000,000   $ 230,000,000    
Maximum borrowing capacity                           $ 1,200,000,000 $ 1,000,000,000
Debt Instrument Term                   5 years          
Variable rate basis                   LIBOR          
Commitment fee   0.15%                          
Interest rate   2.74%                     2.74%    
Repayments of long term debt                   $ 296,000,000 210,000,000        
Borrowings of debt               $ 290,000,000   $ 435,000,000 101,000,000        
2015 Credit Facilities | Revolving Credit Facility | LIBOR | Trip Advisor                              
Debt Financing                              
Variable rate basis                   LIBOR          
Margin                   1.25%          
2015 Credit Facilities | Revolving Credit Facility | ABR | Trip Advisor                              
Debt Financing                              
Variable rate basis                   ABR          
2015 Credit Facilities | Revolving Credit Facility | Prime Rate | Trip Advisor                              
Debt Financing                              
Variable rate basis                   Prime Rate          
2015 Credit Facilities | Revolving Credit Facility | New York Fed Bank Rate | Trip Advisor                              
Debt Financing                              
Variable rate basis                   New York Fed Bank Rate          
Margin                   0.50%          
2015 Credit Facilities | Revolving Credit Facility | Adjusted LIBOR | Trip Advisor                              
Debt Financing                              
Variable rate basis                   Adjusted LIBOR          
Margin                   1.00%          
2015 Credit Facilities | Revolving Credit Facility | Eurocurrency spread | Trip Advisor                              
Debt Financing                              
Variable rate basis                   Eurocurrency          
2015 Credit Facilities | Letter of Credit | Trip Advisor                              
Debt Financing                              
Total debt                         $ 3,000,000    
Maximum borrowing capacity                         15,000,000    
2015 Credit Facilities | Same-day notice borrowings | Trip Advisor                              
Debt Financing                              
Maximum borrowing capacity                         40,000,000    
2016 Credit Facility                              
Debt Financing                              
Total debt                         0    
2016 Credit Facility | Revolving Credit Facility | Trip Advisor                              
Debt Financing                              
Maximum borrowing capacity       $ 73,000,000                      
Repayments of long term debt                 $ 73,000,000            
2016 Credit Facility | Revolving Credit Facility | LIBOR | Trip Advisor                              
Debt Financing                              
Variable rate basis                   LIBOR          
Margin                   1.125%          
Margin when payments are overdue                   1.50%          
Chinese Credit Facility-BOA | TripAdvisor's Chinese subsidiaries                              
Debt Financing                              
Total debt                     $ 0   0    
Chinese Credit Facility-BOA | Chinese credit facilities | People's Bank of China base rate | TripAdvisor's Chinese subsidiaries                              
Debt Financing                              
Maximum borrowing capacity                         30,000,000    
Debt Instrument Term                   1 year          
Chinese Credit Facility-JPM | Chinese credit facilities | TripAdvisor's Chinese subsidiaries                              
Debt Financing                              
Total debt                         $ 7,000,000    
Interest rate   5.00%                 4.35%   5.00%    
Chinese Credit Facility-JPM | Chinese credit facilities | People's Bank of China base rate | TripAdvisor's Chinese subsidiaries                              
Debt Financing                              
Maximum borrowing capacity   ¥ 70,000,000                     $ 10,000,000    
Debt Instrument Term                   1 year          
Variable postpaid forward                              
Debt Financing                              
Total debt                     $ 261,000,000   $ 264,000,000    
Total borrowings         259,000,000                    
Paid-in-Kind Interest                   $ 3,000,000          
Series A | Margin loan member | Trip Advisor                              
Debt Financing                              
Shares pledged as collateral under loan | shares   18.2                     18.2    
Share value                         $ 627,000,000    
Series B | Margin loan member | Trip Advisor                              
Debt Financing                              
Shares pledged as collateral under loan | shares   12.8                     12.8    
Share value                         $ 441,000,000    
Forward Contracts | Margin loan member                              
Debt Financing                              
Repayments of long term debt         200,000,000                    
Payment of paid-in-kind interest         $ 29,000,000                    
Forward Contracts | Variable postpaid forward                              
Debt Financing                              
Derivative contract term         4 years                    
Total borrowings         $ 259,000,000                    
Accreted loan total at maturity         $ 272,000,000                    
Minimum | 2015 Credit Facilities | Revolving Credit Facility | Trip Advisor                              
Debt Financing                              
Commitment fee                   0.15%          
Minimum | 2015 Credit Facilities | Revolving Credit Facility | ABR | Trip Advisor                              
Debt Financing                              
Margin                   0.25%          
Minimum | 2015 Credit Facilities | Revolving Credit Facility | Eurocurrency spread | Trip Advisor                              
Debt Financing                              
Margin                   1.25%          
Minimum | 2016 Credit Facility | Revolving Credit Facility | Trip Advisor                              
Debt Financing                              
Debt Instrument Term       1 month                      
Maximum | 2015 Credit Facilities | Revolving Credit Facility | Trip Advisor                              
Debt Financing                              
Commitment fee                   0.30%          
Maximum | 2015 Credit Facilities | Revolving Credit Facility | ABR | Trip Advisor                              
Debt Financing                              
Margin                   1.00%          
Maximum | 2015 Credit Facilities | Revolving Credit Facility | Eurocurrency spread | Trip Advisor                              
Debt Financing                              
Margin                   2.00%          
Maximum | 2016 Credit Facility | Revolving Credit Facility | Trip Advisor                              
Debt Financing                              
Debt Instrument Term       6 months