Annual report pursuant to Section 13 and 15(d)

Property and Equipment, Net Property and Equipment, Net (Details)

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Property and Equipment, Net Property and Equipment, Net (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 225 $ 388
Less: Accumulated depreciation 131 300
Property and equipment, net 94 88
Land    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 7 0
Building    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 26 0
Building improvements    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 2 0
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 1 29
Capitalized software    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 166 258
Furniture, fixtures and equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 16 24
Finance leases    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 0 64
Construction in progress    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 7 $ 13