Quarterly report pursuant to Section 13 or 15(d)

Assets and Liabilities Measured at Fair Value (Details)

v3.21.1
Assets and Liabilities Measured at Fair Value (Details)
$ in Millions
 3 Months Ended
Mar. 09, 2020
USD ($)
$ / item
shares
Mar. 31, 2020
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Repayments of long term debt   $ 352    
Forward Contracts | variable prepaid forward        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Forward contract shares indexed | shares 2.4      
Forward floor price | $ / item 17.25      
Forward cap price | $ / item 26.84      
Variable prepaid forward prepayment received $ 34      
Recurring        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cash equivalents     $ 42 $ 4
Financial instruments liabilities     339 14
Recurring | TripCo Exchangeable Senior Debentures due 2051        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative asset     301  
Recurring | Level 1        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cash equivalents     42 4
Recurring | Level 2        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Financial instruments liabilities     339 $ 14
Recurring | Level 2 | TripCo Exchangeable Senior Debentures due 2051        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative asset     $ 301