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Restructuring - Narrative (Details)
3 Months Ended
Mar. 31, 2022
USD ($)
position
Mar. 31, 2021
position
Dec. 31, 2021
USD ($)
2022 Restructuring Plan      
Restructuring Cost and Reserve [Line Items]      
Workforce reduction | position 140    
Employee severance charges $ 74,000,000    
Reductions to restructuring reserve 3,000,000    
Restructuring reserve balance 71,000,000    
2021 Restructuring Plan      
Restructuring Cost and Reserve [Line Items]      
Workforce reduction | position   30  
Reductions to restructuring reserve 0    
Restructuring reserve balance $ 19,000,000   $ 19,000,000