Quarterly report pursuant to Section 13 or 15(d)

Debt (Details)

v3.10.0.1
Debt (Details)
shares in Millions
1 Months Ended 6 Months Ended
Nov. 07, 2017
May 12, 2017
Jun. 23, 2016
USD ($)
Aug. 21, 2014
USD ($)
agreement
Jun. 30, 2015
USD ($)
Jun. 30, 2018
USD ($)
item
Jun. 30, 2017
USD ($)
Jun. 30, 2018
CNY (¥)
shares
Jun. 30, 2018
USD ($)
shares
Dec. 31, 2017
USD ($)
Sep. 30, 2016
USD ($)
Debt Financing                      
Long-term Debt                 $ 480,000,000 $ 711,000,000  
Debt classified as current                 (214,000,000) (7,000,000)  
Long-term debt (note 6)                 266,000,000 704,000,000  
Repayments of long term debt           $ 245,000,000 $ 279,000,000        
Borrowings of debt           $ 7,000,000 373,000,000        
TripAdvisor's Chinese subsidiaries                      
Debt Financing                      
Number of credit facilities | item           2          
Revolving Credit Facility | Trip Advisor                      
Debt Financing                      
Long-term Debt                   230,000,000  
Maximum borrowing capacity         $ 1,200,000,000            
Debt Instrument Term         5 years            
Commitment fee           0.15%          
Repayments of long term debt           $ 235,000,000          
Foreign Earnings Repatriated           325,000,000          
Borrowings of debt           5,000,000          
Revolving Credit Facility | LIBOR | Trip Advisor                      
Debt Financing                      
Variable rate basis   LIBOR                  
Revolving Credit Facility | ABR | Trip Advisor                      
Debt Financing                      
Variable rate basis   Alternate Base Rate                  
Revolving Credit Facility | Prime Rate | Trip Advisor                      
Debt Financing                      
Variable rate basis   Prime Rate                  
Revolving Credit Facility | New York Fed Bank Rate | Trip Advisor                      
Debt Financing                      
Variable rate basis   New York Fed Bank Rate                  
Margin   0.50%                  
Revolving Credit Facility | Adjusted LIBOR | Trip Advisor                      
Debt Financing                      
Margin   1.00%                  
Interest period   1 month                  
Letter of Credit | Trip Advisor                      
Debt Financing                      
Maximum borrowing capacity                 15,000,000    
Same-day notice borrowings | Trip Advisor                      
Debt Financing                      
Maximum borrowing capacity                 40,000,000    
Margin loan member                      
Debt Financing                      
Long-term Debt                 214,000,000 210,000,000  
Debt instrument, number of instruments | agreement       2              
Total borrowings       $ 400,000,000              
Margin loan member | Redemption period one                      
Debt Financing                      
Initial redemption period       6 months              
Margin loan member | LIBOR                      
Debt Financing                      
Variable rate basis       LIBOR              
Margin loan member | LIBOR | Redemption period one                      
Debt Financing                      
Margin       3.65%              
Margin loan member | LIBOR | 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%                
Paid-in-Kind Interest           $ 4,000,000          
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                      
Long-term Debt                   7,000,000  
2015 Credit Facilities | Revolving Credit Facility | Trip Advisor                      
Debt Financing                      
Line of Credit                 0    
2015 Credit Facilities | Letter of Credit | Trip Advisor                      
Debt Financing                      
Outstanding letters of credit                 3,000,000    
2016 Credit Facility | Revolving Credit Facility | Trip Advisor                      
Debt Financing                      
Maximum borrowing capacity                     $ 73,000,000
Line of Credit                   0  
Chinese Credit Facility-BOA | TripAdvisor's Chinese subsidiaries                      
Debt Financing                      
Line of Credit                 0 $ 0  
Chinese Credit Facility-BOA | 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                      
Maximum borrowing capacity               ¥ 70,000,000 11,000,000    
Debt Instrument Term           1 year          
Interest rate                   5.00%  
Borrowings of debt           $ 2,000,000          
Line of Credit                   $ 7,000,000  
Variable postpaid forward                      
Debt Financing                      
Long-term Debt                 $ 266,000,000 $ 264,000,000  
Paid-in-Kind Interest             $ 2,000,000        
Series A | Margin loan member | Trip Advisor                      
Debt Financing                      
Shares pledged as collateral under loan | shares               18.2 18.2    
Share value                 $ 1,012,000,000    
Series B | Margin loan member | Trip Advisor                      
Debt Financing                      
Shares pledged as collateral under loan | shares               12.8 12.8    
Share value                 $ 713,000,000    
Forward Contracts                      
Debt Financing                      
Derivative contract term     4 years                
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                      
Total borrowings     259,000,000                
Accreted loan total at maturity     $ 272,000,000                
Minimum | Revolving Credit Facility | Trip Advisor                      
Debt Financing                      
Commitment fee   0.15%                  
Minimum | Revolving Credit Facility | LIBOR | Trip Advisor                      
Debt Financing                      
Margin   1.25%                  
Minimum | Revolving Credit Facility | ABR | Trip Advisor                      
Debt Financing                      
Margin   0.25%                  
Maximum | Revolving Credit Facility | Trip Advisor                      
Debt Financing                      
Commitment fee   0.30%                  
Maximum | Revolving Credit Facility | LIBOR | Trip Advisor                      
Debt Financing                      
Margin   2.00%                  
Maximum | Revolving Credit Facility | ABR | Trip Advisor                      
Debt Financing                      
Margin   1.00%