Quarterly report pursuant to Section 13 or 15(d)

Debt (Summary Of Outstanding Debt Maturities) (Details)

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Debt (Summary Of Outstanding Debt Maturities) (Details) - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Debt Instrument [Line Items]    
Within 1 year $ 929  
Between 1 and 2 years 779  
Between 2 and 3 years 510  
Between 3 and 4 years 488  
Between 4 and 5 years 571  
Thereafter 2,126  
Total long-term debt 5,403  
Non-Recourse Vacation Ownership Debt [Member]    
Debt Instrument [Line Items]    
Within 1 year 274  
Between 1 and 2 years 372  
Between 2 and 3 years 207  
Between 3 and 4 years 207  
Between 4 and 5 years 227  
Thereafter 731  
Total long-term debt 2,018  
Debt    
Debt Instrument [Line Items]    
Within 1 year 655  
Between 1 and 2 years 407  
Between 2 and 3 years 303  
Between 3 and 4 years 281  
Between 4 and 5 years 344  
Thereafter 1,395  
Total long-term debt [1] $ 3,385 $ 4,184
[1] The carrying amounts of the secured notes and term loan are net of unamortized discounts of $14 million and $16 million as of June 30, 2021 and December 31, 2020, and net of unamortized debt financing costs of $7 million as of June 30, 2021 and December 31, 2020.