Quarterly report pursuant to Section 13 or 15(d)

Other Expenses and Charges - Narrative (Details)

v3.20.2
Other Expenses and Charges - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Mar. 31, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Restructuring Cost and Reserve [Line Items]          
Restructuring $ 16 $ 13 $ 0 $ 29 $ 0
Transaction-related, net 5   11 13 18
Separation-Related Charges 0   1   22
Goodwill and Intangible Asset Impairment 205        
Impairments, net 206   45 206 45
Contract termination 0   (9) 0 (9)
Separation-related expenses 0   1 1 22
Spin-Off, Hotel Group Business          
Restructuring Cost and Reserve [Line Items]          
Separation-related costs 0   1   $ 22
Separation-Related Charges       1  
Hotel Franchising          
Restructuring Cost and Reserve [Line Items]          
Restructuring 8     15  
Hotel Franchising | Reportable Segments          
Restructuring Cost and Reserve [Line Items]          
Goodwill and Intangible Asset Impairment 191        
Hotel Management          
Restructuring Cost and Reserve [Line Items]          
Restructuring 1     $ 2  
Hotel Management | Reportable Segments          
Restructuring Cost and Reserve [Line Items]          
Goodwill and Intangible Asset Impairment 14        
Previously impaired asset          
Restructuring Cost and Reserve [Line Items]          
Impairments, net 3        
Contract Termination Indemnification Obligation          
Restructuring Cost and Reserve [Line Items]          
Contract termination     (9)    
Other Assets [Member] | Contract Termination          
Restructuring Cost and Reserve [Line Items]          
Impairments, net     10    
Other Liabilities [Member] | Contract Termination          
Restructuring Cost and Reserve [Line Items]          
Impairments, net     13    
Accounts Receivable [Member] | Contract Termination          
Restructuring Cost and Reserve [Line Items]          
Impairments, net $ 4   $ 48