Quarterly report pursuant to Section 13 or 15(d)

Property and equipment (Details)

v3.21.2
Property and equipment (Details) - USD ($)
$ in Millions
Sep. 30, 2021
Dec. 31, 2020
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 1,622 $ 1,548
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization 944 882
Property and equipment, net 678 666
Capitalized software    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 714 694
Building and leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 636 591
Furniture, fixtures and equipment    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 207 207
Land    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 30 30
Construction in progress    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 18 12
Finance leases    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 17 $ 14