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Discontinued Operations - General Information (Details) - MCC Business - USD ($)
$ in Millions
Dec. 31, 2020
Apr. 30, 2020
Discontinued Operations, Disposed of by Sale    
Discontinued Operations    
Disposal Group, Including Discontinued Operation, Consideration $ 850  
Disposal Group, Including Discontinued Operation, Consideration, Closing Adjustments $ 158  
Discontinued Operations, Held-for-sale    
Discontinued Operations    
Disposal Group, Including Discontinued Operation, Consideration   $ 850