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Accounting Policies (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Cost of revenue    
Restructuring Cost and Reserve [Line Items]    
Employee separation costs   $ 15
Research and development    
Restructuring Cost and Reserve [Line Items]    
Employee separation costs   43
Sales and marketing    
Restructuring Cost and Reserve [Line Items]    
Employee separation costs   47
General and administrative    
Restructuring Cost and Reserve [Line Items]    
Employee separation costs   88
Employee Severance    
Restructuring Cost and Reserve [Line Items]    
Employee separation costs $ 14 193
Stock-Based Compensation    
Restructuring Cost and Reserve [Line Items]    
Employee separation costs   126
Facility Closing    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs $ 6 $ 19