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Property and Equipment (Tables)
9 Months Ended
Sep. 30, 2021
Property, Plant and Equipment [Abstract]  
Summary of Property and Equipment, Net
Property and equipment, net consists of the following (in millions):
 September 30, 2021December 31, 2020
Computer equipment$1,154 $974 
Computer software77 72 
Leasehold and other improvements184 168 
Furniture and fixtures70 69 
Construction in progress21 
Property and equipment, gross1,506 1,292 
Less: Accumulated depreciation(766)(632)
Property and equipment, net$740 $660