Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details)

v3.8.0.1
Income Taxes (Details) - USD ($)
$ in Millions
 1 Months Ended 12 Months Ended
Feb. 02, 2018
Feb. 28, 2018
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Effect of Tax Cuts and Jobs Act of 2017 Accounting Incomplete, Provisional [Abstract]            
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent       35.00%    
Current:            
Federal       $ (92) $ (33) $ (42)
State and local       (2) (3) (7)
Foreign       (6) (15) (26)
Total current income tax expense       (100) (51) (75)
Deferred:            
Federal       288 30 52
State and local       30 6 7
Foreign       11 16 26
Total deferred income tax expense       329 52 85
Income tax (expense) benefit       229 1 10
Income before income taxes            
Domestic       (1,720) 24 (70)
Foreign       (90) 22 74
Total       (1,810) 46 4
Differences between provision for income taxes and income tax expense computed by applying federal rates            
Computed expected tax benefits (expense)       634 (16) (1)
State and local taxes, net of federal income taxes       17 (3) 2
Foreign taxes, net of foreign tax credits       2 28 48
Transition tax       (67)    
Change in tax rate due to Tax Act       139    
Basis difference in consolidated subsidiary       (8) 6 (21)
Change in valuation allowance       (27) (9) (7)
Change in unrecognized tax benefits       (11) (11) (12)
Federal tax credits       8 10 3
Impairment of nondeductible goodwill       (445)    
Other       (13) (4) (2)
Income tax (expense) benefit       $ 229 1 10
Transition tax payment period       8 years    
One-time transition tax for accumulated foreign earnings       $ 67    
Net tax benefit due to corporate rate reduction       (139)    
Deferred tax assets:            
Net operating loss carryforwards       99 93  
Stock-based compensation       40 57  
Lease financing obligation       22 33  
Other       60 85  
Total deferred tax assets       221 268  
Less: valuation allowance       (64) (33)  
Net deferred tax assets       157 235  
Deferred tax liabilities:            
Intangible assets       (392) (773)  
Investments       (38) (45)  
Other       (59) (76)  
Total deferred tax liabilities       (489) (894)  
Net deferred tax liability       (332) (659)  
Deferred tax balance sheet classification            
Noncurrent deferred tax liability       (332) (659)  
Net deferred tax liability       332 $ 659  
Forecast            
Effect of Tax Cuts and Jobs Act of 2017 Accounting Incomplete, Provisional [Abstract]            
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent     21.00%      
TripCo            
Deferred tax assets:            
Net operating loss carryforwards       43    
Trip Advisor            
Differences between provision for income taxes and income tax expense computed by applying federal rates            
Tax benefit resulting from court case related to stock-based compensation in intercompany cost-sharing agreements           $ 13
Deferred tax assets:            
Net operating loss carryforwards       56    
Deferred tax balance sheet classification            
Valuation allowance income tax expense affect       27    
Valuation allowance increase due to foreign exchange impact of foreign NOLs       4    
Undistributed earnings of certain foreign combined companies       882    
Remaining undistributed foreign earnings indefinitely reinvested       $ 557    
Foreign Earnings Repatriated $ 325 $ 325