REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregated Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Revenue from External Customer [Line Items]
Total net revenue	$ 1,366.3	$ 1,407.8	$ 3,950.2	$ 3,903.7
Recurrent consumer spending
Revenue from External Customer [Line Items]
Total net revenue	1,034.7	1,115.4	3,103.5	3,042.8
Full game and other
Revenue from External Customer [Line Items]
Total net revenue	331.6	292.4	846.7	860.9
Mobile
Revenue from External Customer [Line Items]
Total net revenue	706.7	721.2	2,032.9	1,820.9
Console
Revenue from External Customer [Line Items]
Total net revenue	547.6	561.4	1,598.6	1,720.5
PC and other
Revenue from External Customer [Line Items]
Total net revenue	112.0	125.2	318.7	362.3
Digital online
Revenue from External Customer [Line Items]
Total net revenue	1,297.3	1,336.7	3,777.0	3,693.7
Physical retail and other
Revenue from External Customer [Line Items]
Total net revenue	69.0	71.1	173.2	210.0
Over time
Revenue from External Customer [Line Items]
Total net revenue	1,096.7	1,120.0	3,183.1	3,043.9
Point in time
Revenue from External Customer [Line Items]
Total net revenue	$ 269.6	$ 287.8	$ 767.1	$ 859.8