REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregated Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Revenue from External Customer [Line Items]
Total net revenue	$ 1,338.2	$ 1,284.7
Recurrent consumer spending
Revenue from External Customer [Line Items]
Total net revenue	1,097.7	1,068.4
Full game and other
Revenue from External Customer [Line Items]
Total net revenue	240.5	216.3
Mobile
Revenue from External Customer [Line Items]
Total net revenue	722.5	680.0
Console
Revenue from External Customer [Line Items]
Total net revenue	508.9	504.3
PC and other
Revenue from External Customer [Line Items]
Total net revenue	106.8	100.4
Digital online
Revenue from External Customer [Line Items]
Total net revenue	1,295.5	1,240.0
Physical retail and other
Revenue from External Customer [Line Items]
Total net revenue	42.7	44.7
Over time
Revenue from External Customer [Line Items]
Total net revenue	1,127.6	1,079.8
Point in time
Revenue from External Customer [Line Items]
Total net revenue	$ 210.6	$ 204.9