REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregated Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Revenue from External Customer [Line Items]
Total net revenue	$ 1,359.8	$ 1,366.3	$ 4,051.1	$ 3,950.2
Recurrent consumer spending
Revenue from External Customer [Line Items]
Total net revenue	1,087.5	1,034.7	3,264.2	3,103.5
Full game and other
Revenue from External Customer [Line Items]
Total net revenue	272.3	331.6	786.9	846.7
Mobile
Revenue from External Customer [Line Items]
Total net revenue	731.6	706.7	2,194.3	2,032.9
Console
Revenue from External Customer [Line Items]
Total net revenue	507.9	547.6	1,507.9	1,598.6
PC and other
Revenue from External Customer [Line Items]
Total net revenue	120.3	112.0	348.9	318.7
Digital online
Revenue from External Customer [Line Items]
Total net revenue	1,310.7	1,297.3	3,906.2	3,777.0
Physical retail and other
Revenue from External Customer [Line Items]
Total net revenue	49.1	69.0	144.9	173.2
Over time
Revenue from External Customer [Line Items]
Total net revenue	1,111.9	1,096.7	3,325.8	3,183.1
Point in time
Revenue from External Customer [Line Items]
Total net revenue	$ 247.9	$ 269.6	$ 725.3	$ 767.1