Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details)

v3.20.4
Commitments and Contingencies (Details)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2020
USD ($)
Sep. 30, 2020
USD ($)
Jun. 30, 2020
USD ($)
Mar. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
hotel
Sep. 30, 2019
USD ($)
Jun. 30, 2019
USD ($)
Mar. 31, 2019
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
hotel
Dec. 31, 2018
USD ($)
Loss Contingencies [Line Items]                      
Number of hotel properties terminated | hotel         8         8  
Payment for contract termination         $ 35            
Impairments, net $ 0 $ 0 $ 206 $ 0 0 $ 0 $ 45 $ 0 $ 206 $ 45 $ 0
Guarantor offsetting asset carrying value         5         5  
Contract liabilities 229       283       229 283  
Post-closing credit support (up to) 61       61       61 61  
Litigation reserves 4       7       4 7  
Litigation receivable covered by insurance         2         2  
Accrued expenses                      
Loss Contingencies [Line Items]                      
Guarantor obligations, current carrying value 0       10       0 10  
Other non-current assets                      
Loss Contingencies [Line Items]                      
Guarantor offsetting asset carrying value         4         4  
Other current assets                      
Loss Contingencies [Line Items]                      
Guarantor offsetting asset carrying value         $ 1         $ 1  
Maximum                      
Loss Contingencies [Line Items]                      
Range of possible loss, portion not accrued (up to) $ 6               $ 6    
Contract Termination                      
Loss Contingencies [Line Items]                      
Managed hotel properties | hotel         22         22  
Impairments, net           45          
Contract Termination | Receivable                      
Loss Contingencies [Line Items]                      
Impairments, net     $ 4     48       $ 48  
Contract Termination | Other Assets                      
Loss Contingencies [Line Items]                      
Impairments, net           10       10  
Contract Termination | Other Liabilities                      
Loss Contingencies [Line Items]                      
Impairments, net           $ 13       $ 13