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Reorganization and Business Transformation (Details) - USD ($)
$ in Millions
 1 Months Ended 12 Months Ended 14 Months Ended
Sep. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2021
Nov. 02, 2020
Restructuring Cost and Reserve [Line Items]            
Payments for restructuring   $ 23        
Stock-based compensation expense   16 $ 14 $ 15    
Accelerated depreciation   2        
Outside Services, Legal and Other Associated Costs            
Restructuring Cost and Reserve [Line Items]            
Payments for restructuring   1        
Non-US | Employee            
Restructuring Cost and Reserve [Line Items]            
Cash payment for international employees   2        
2018 Restructuring Plan            
Restructuring Cost and Reserve [Line Items]            
Restructuring costs   1 14 23    
Restructuring costs incurred     38      
Payments for restructuring   2 19 $ 11    
2018 Restructuring Plan | Accelerated Amortization of Right-of-use Assets            
Restructuring Cost and Reserve [Line Items]            
Restructuring costs     $ 6      
VSP            
Restructuring Cost and Reserve [Line Items]            
Restructuring costs   42        
Restructuring and related activities, employee minimum age to qualify 55 years          
Restructuring and related activities, employee service term 10 years          
Restructuring costs, cash-settled   38        
Restructuring costs, noncash   4        
Stock-based compensation expense   2        
VSP | Cost of Revenue            
Restructuring Cost and Reserve [Line Items]            
Restructuring costs   10        
VSP | Selling, General and Administrative Expenses            
Restructuring Cost and Reserve [Line Items]            
Restructuring costs   25        
VSP | Research and Development Expense            
Restructuring Cost and Reserve [Line Items]            
Restructuring costs   7        
VSP | Employee severance and other employee-related costs | Minimum            
Restructuring Cost and Reserve [Line Items]            
Restructuring and related cost, expected cost           $ 30
VSP | Employee severance and other employee-related costs | Maximum            
Restructuring Cost and Reserve [Line Items]            
Restructuring and related cost, expected cost           33
Workforce Reduction Plan            
Restructuring Cost and Reserve [Line Items]            
Restructuring costs incurred   $ 42        
Workforce Reduction Plan | Minimum            
Restructuring Cost and Reserve [Line Items]            
Restructuring and related cost, expected cost           55
Workforce Reduction Plan | Minimum | Forecast            
Restructuring Cost and Reserve [Line Items]            
Payments for restructuring         $ 65  
Workforce Reduction Plan | Maximum            
Restructuring Cost and Reserve [Line Items]            
Restructuring and related cost, expected cost           65
Workforce Reduction Plan | Maximum | Forecast            
Restructuring Cost and Reserve [Line Items]            
Payments for restructuring         75  
Workforce Reduction Plan | Employee severance and other employee-related costs | Minimum            
Restructuring Cost and Reserve [Line Items]            
Restructuring and related cost, expected cost           12
Workforce Reduction Plan | Employee severance and other employee-related costs | Maximum            
Restructuring Cost and Reserve [Line Items]            
Restructuring and related cost, expected cost           14
Workforce Reduction Plan | Facility Closing | Minimum            
Restructuring Cost and Reserve [Line Items]            
Restructuring and related cost, expected cost           5
Workforce Reduction Plan | Facility Closing | Maximum            
Restructuring Cost and Reserve [Line Items]            
Restructuring and related cost, expected cost           6
Workforce Reduction Plan | Outside Services, Legal and Other Associated Costs | Minimum            
Restructuring Cost and Reserve [Line Items]            
Restructuring and related cost, expected cost           8
Workforce Reduction Plan | Outside Services, Legal and Other Associated Costs | Maximum            
Restructuring Cost and Reserve [Line Items]            
Restructuring and related cost, expected cost           $ 12
Workforce Reduction Plan | Non-US | Employee | Minimum | Forecast            
Restructuring Cost and Reserve [Line Items]            
Payments for restructuring         14  
Workforce Reduction Plan | Non-US | Employee | Maximum | Forecast            
Restructuring Cost and Reserve [Line Items]            
Payments for restructuring         $ 18