Restructuring - Schedule of Total Expected Pre-tax Restructuring Charges (Details) $ in Millions	Jun. 30, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Total expected pre-tax restructuring charges	$ 150
Activision
Restructuring Cost and Reserve [Line Items]
Total expected pre-tax restructuring charges	14
Blizzard
Restructuring Cost and Reserve [Line Items]
Total expected pre-tax restructuring charges	77
King
Restructuring Cost and Reserve [Line Items]
Total expected pre-tax restructuring charges	27
Other segments
Restructuring Cost and Reserve [Line Items]
Total expected pre-tax restructuring charges	$ 32