Restructuring - Schedule of Total Expected Pre-tax Restructuring Charges (Details) $ in Millions	Dec. 31, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Total expected pre-tax restructuring charges	$ 190
Activision
Restructuring Cost and Reserve [Line Items]
Total expected pre-tax restructuring charges	25
Blizzard
Restructuring Cost and Reserve [Line Items]
Total expected pre-tax restructuring charges	105
King
Restructuring Cost and Reserve [Line Items]
Total expected pre-tax restructuring charges	20
Other segments
Restructuring Cost and Reserve [Line Items]
Total expected pre-tax restructuring charges	$ 40