Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details)

v3.10.0.1
Income Taxes (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Operating loss carryforwards      
Loss carryforwards $ 77 $ 99  
Unrecognized tax benefits      
Balance at beginning of year 123 105 $ 89
Additions based on tax positions related to the current year 11 17 16
Additions for tax positions of prior years 2 1 1
Reductions for lapse of statute of limitations     (1)
Balance at end of year 136 123 105
Unrecognized tax benefit that would impact effective rate 87 78 $ 63
Accrued interest and penalties related to uncertain tax positions 20 $ 13  
Minimum      
Unrecognized tax benefits      
Income Tax Examination, Estimate of Possible Loss 10    
Maximum      
Unrecognized tax benefits      
Income Tax Examination, Estimate of Possible Loss 14    
Foreign      
Operating loss carryforwards      
Operating loss carryforwards not expected to be utilized 57    
TripAdvisor      
Operating loss carryforwards      
Loss carryforwards $ 38