Annual report pursuant to Section 13 and 15(d)

Debt - TripCo Debt (Details)

v3.20.4
Debt - TripCo Debt (Details)
shares in Millions, $ in Millions
3 Months Ended 12 Months Ended
Feb. 18, 2021
USD ($)
Mar. 26, 2020
USD ($)
Mar. 09, 2020
USD ($)
Dec. 20, 2019
USD ($)
Nov. 19, 2019
USD ($)
Nov. 13, 2019
USD ($)
Jun. 10, 2019
USD ($)
Nov. 07, 2017
Jun. 23, 2016
USD ($)
agreement
Dec. 31, 2019
USD ($)
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Debt Financing                          
Repayments of long term debt                     $ 1,052 $ 359 $ 245
Term Loan 2019                          
Debt Financing                          
Carrying amount of debt             $ 225            
Borrowed amount       $ 33 $ 75                
Delayed Draw Term Loan                          
Debt Financing                          
Borrowed amount           $ 15              
Maximum borrowing capacity         $ 15   25            
Variable Prepaid Forward                          
Debt Financing                          
Carrying amount of debt                     $ 41    
Variable Prepaid Forward | Forward Contracts                          
Debt Financing                          
Variable prepaid forward prepayment received     $ 34                    
Derivative contract term     3 years                    
Accreted loan total at maturity     $ 42                    
Common stock pledged as collateral | shares                     2.4    
Value of common stock pledged as collateral.                     $ 69    
Variable Postpaid Forward | Forward Contracts                          
Debt Financing                          
Aggregate principal amount                 $ 259        
Repayments of long term debt                   $ 270      
Margin loan                          
Debt Financing                          
Carrying amount of debt                   $ 355   355  
Repayments of long term debt             200            
Repayments of debt   $ 363                      
Paid-in-Kind Interest                       $ 6  
Payment of paid-in-kind interest             $ 22            
Margin Loan Amendment 1                          
Debt Financing                          
Carrying amount of debt                 $ 200        
Number of margin loans amended | agreement                 2        
Margin Loan Amendment 2 | LIBOR                          
Debt Financing                          
Margin               2.40%          
Variable rate basis               LIBOR          
Senior Secured Revolving Credit Facility | Subsequent Event                          
Debt Financing                          
Maximum borrowing capacity $ 25                        
Put option exercise delivery term 120 days                        
Change in control transactions term 15 days                        
Senior Secured Revolving Credit Facility | LIBOR | Subsequent Event                          
Debt Financing                          
Margin 3.00%                        
Variable rate basis LIBOR