Annual report pursuant to Section 13 and 15(d)

Long-Term Debt and Borrowing Arrangements (Narrative) (Details)

v3.20.4
Long-Term Debt and Borrowing Arrangements (Narrative) (Details) - USD ($)
1 Months Ended 12 Months Ended
May 31, 2018
Aug. 30, 2020
May 31, 2018
Apr. 30, 2018
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Aug. 31, 2020
Apr. 30, 2020
May 30, 2018
Debt Instrument [Line Items]                    
Hedging ineffectiveness recognized         $ 0 $ 0        
Reclassification during next twelve months         26,000,000          
Interest expense         114,000,000 104,000,000 $ 67,000,000      
Interest paid         101,000,000 100,000,000 56,000,000      
Interest Income, Other         2,000,000 4,000,000 $ 7,000,000      
Interest Rate Swap                    
Debt Instrument [Line Items]                    
Derivative, Notional Amount                   $ 1,100,000,000
Effect of interest rate swaps in interest expense         $ 22,000,000 $ 3,000,000        
Interest Rate Swap 1                    
Debt Instrument [Line Items]                    
Derivative, Notional Amount                   600,000,000
Interest Rate Swap 2                    
Debt Instrument [Line Items]                    
Derivative, Notional Amount                   500,000,000
Capital lease | Wyndham Worldwide                    
Debt Instrument [Line Items]                    
Debt instrument, interest rate, stated percentage         4.50% 4.50%        
Term loan (due May 2025)                    
Debt Instrument [Line Items]                    
Debt instrument, face amount                   $ 1,600,000,000
Amortization of loan, equal installments     1.00%              
Mandatory prepayments, percentage net cash proceeds from issuances or incurrence of debt     100.00%              
Mandatory prepayments, percentage of net cash proceeds from certain sales or other dispositions of assets     100.00%              
Mandatory prepayments, percentage of net cash proceeds from certain sales or other disposition of assets, step down one     50.00%              
Mandatory prepayments, percentage of net cash proceeds from certain sales or other disposition of assets, step down two     0.00%              
Mandatory prepayment in excess of cash flow     50.00%              
Mandatory prepayment in excess of cash flow, step down one     25.00%              
Mandatory prepayment in excess of cash flow, step down two     0.00%              
Term loan (due May 2025) | Long-term Debt                    
Debt Instrument [Line Items]                    
Debt instrument, face amount         $ 1,600,000,000          
Debt instrument, interest rate, stated percentage         3.18% 4.00%        
Aggregate fair value of interest rate swaps         $ 71,000,000 $ 34,000,000        
Senior Secured Credit Facility                    
Debt Instrument [Line Items]                    
Aggregate amount of revolving loans (not to exceed) $ 550,000,000   $ 550,000,000              
Percentage of EBITDA (not to exceed) 100.00%                  
5.375% senior unsecured notes (due April 2026)                    
Debt Instrument [Line Items]                    
Debt instrument, face amount       $ 500,000,000            
Debt instrument, interest rate, stated percentage       5.375%            
Net proceeds from issuance of debt       $ 493,000,000            
Redemption price percentage of notes       102.688%            
5.375% senior unsecured notes (due April 2026) | Senior Notes                    
Debt Instrument [Line Items]                    
Debt instrument, interest rate, stated percentage         5.375% 5.38%        
Senior Unsecured Notes due August 2028 [Member]                    
Debt Instrument [Line Items]                    
Debt instrument, face amount               $ 500,000,000    
Debt instrument, interest rate, stated percentage               4.375%    
Proceeds from Issuance of Unsecured Debt   $ 492,000,000                
Redemption price percentage of notes   102.188%                
Senior Unsecured Notes due August 2028 [Member] | Senior Notes                    
Debt Instrument [Line Items]                    
Debt instrument, interest rate, stated percentage         4.375%          
LIBOR | Term loan (due May 2025)                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (as a percent)     1.75%              
Basis spread on variable rate, floor (as a percent)     0.00%              
Base Rate | Term loan (due May 2025)                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (as a percent)     0.75%              
Weighted Average | Interest Rate Swap 1                    
Debt Instrument [Line Items]                    
Fixed interest rate on interest rate swap                   2.53%
Weighted Average | Interest Rate Swap 2                    
Debt Instrument [Line Items]                    
Fixed interest rate on interest rate swap                   1.31%
$750 million revolving credit facility (due May 2023)                    
Debt Instrument [Line Items]                    
Maximum borrowing capacity         $ 750,000,000          
Commitment fee percentage     0.20%              
Debt issuance costs           $ 4,000,000        
Debt Covenant, Minimum Liquidity Requirement                 $ 200,000,000  
Debt Covenant, Dividend Limit Per Share                 $ 0.01  
Debt Covenant, Minimum Liquidity Requirement To Trigger Dividend Restriction                 $ 300,000,000  
$750 million revolving credit facility (due May 2023) | Minimum                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (as a percent)     0.50%              
$750 million revolving credit facility (due May 2023) | Minimum | LIBOR                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (as a percent)     1.50%              
$750 million revolving credit facility (due May 2023) | Maximum                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (as a percent)     1.00%              
$750 million revolving credit facility (due May 2023) | Maximum | LIBOR                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (as a percent)     2.00%