Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Narrative (Details)

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Commitments and Contingencies - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Mar. 31, 2022
Dec. 31, 2021
Loss Contingencies [Line Items]      
Litigation reserves   $ 6 $ 6
Litigation receivable covered by insurance   4 3
Accrued expenses and other current liabilities   235 258
Sale of European Vacation Rentals Business | Affiliated Entity      
Loss Contingencies [Line Items]      
Accrued expenses and other current liabilities   2 $ 2
Related Party Transaction, Post Closing-Adjustment to Reduce Net Consideration $ 44    
Former Parent's Post-Closing Adjustment   7  
Maximum      
Loss Contingencies [Line Items]      
Range of possible loss, portion not accrued (up to)   $ 4