XML 58 R46.htm IDEA: XBRL DOCUMENT v3.21.2
Income Taxes - Additional Information (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Jan. 31, 2021
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Income Taxes [Line Items]            
Income tax refund   $ 48,000,000   $ 48,000,000   $ 48,000,000
Reduction in long-term transition tax payable   28,000,000   28,000,000    
Income tax benefit   6,000,000 $ 26,000,000 21,000,000 $ 38,000,000  
Accrued interest liability     37,000,000   37,000,000  
Accrued penalties     0   0  
Minimum | HMRC | Tax Years 2012 Through 2016            
Income Taxes [Line Items]            
Increase in income tax expense due to proposed adjustments related to transfer pricing with foreign subsidiary, estimated $ 45,000,000          
Minimum | Expedia | IRS | Tax Years 2009 through 2016            
Income Taxes [Line Items]            
Increase in income tax expense due to proposed adjustments related to transfer pricing with foreign subsidiary, estimated       95,000,000    
Minimum | Expedia | IRS | 2009 through 2011 Pre Spin-Off Tax Years            
Income Taxes [Line Items]            
Increase in income tax expense due to proposed adjustments related to transfer pricing with foreign subsidiary, estimated       20,000,000    
Maximum | HMRC | Tax Years 2012 Through 2016            
Income Taxes [Line Items]            
Increase in income tax expense due to proposed adjustments related to transfer pricing with foreign subsidiary, estimated $ 55,000,000          
Maximum | Expedia | IRS | Tax Years 2009 through 2016            
Income Taxes [Line Items]            
Increase in income tax expense due to proposed adjustments related to transfer pricing with foreign subsidiary, estimated       105,000,000    
Maximum | Expedia | IRS | 2009 through 2011 Pre Spin-Off Tax Years            
Income Taxes [Line Items]            
Increase in income tax expense due to proposed adjustments related to transfer pricing with foreign subsidiary, estimated       30,000,000    
COVID-19 Pandemic            
Income Taxes [Line Items]            
Government grants and other assistance benefits recognized   2,000,000 $ 4,000,000 5,000,000 $ 4,000,000  
Government grants and other assistance benefits received   4,000,000   4,000,000    
COVID-19 Pandemic | Prepaid Expenses and Other Current Assets            
Income Taxes [Line Items]            
Government grants and other assistance benefits receivable   $ 2,000,000   $ 2,000,000   $ 2,000,000