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Company Restructuring - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]        
Restructuring and related charges   $ 259 $ 41 $ 67
Transformative Growth Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring and related charges   238    
Transformative Growth Plan | Forecast        
Restructuring Cost and Reserve [Line Items]        
Restructuring and related charges $ 290      
Employee costs        
Restructuring Cost and Reserve [Line Items]        
Cumulative amount incurred to date for active programs   223    
Exit costs        
Restructuring Cost and Reserve [Line Items]        
Cumulative amount incurred to date for active programs   $ 52