REVENUE FROM CONTRACTS WITH CUSTOMERS (Disaggregated Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Revenue from External Customer [Line Items]
Total net revenue	$ 760,541	$ 930,129	$ 857,841	$ 540,459	$ 539,007	$ 1,248,738	$ 492,667	$ 387,982	$ 3,088,970	$ 2,668,394	$ 1,792,892
Product
Revenue from External Customer [Line Items]
Total net revenue									1,839,696	1,319,033
Service and other
Revenue from External Customer [Line Items]
Total net revenue									1,249,274	1,349,361
Full game and other
Revenue from External Customer [Line Items]
Total net revenue									1,703,971	1,597,478
Recurrent Consumer Spending ("RCS")
Revenue from External Customer [Line Items]
Total net revenue									1,384,999	1,070,916
Console
Revenue from External Customer [Line Items]
Total net revenue									2,308,602	2,233,861	1,463,306
PC and other
Revenue from External Customer [Line Items]
Total net revenue									780,368	434,533	329,586
Digital online
Revenue from External Customer [Line Items]
Total net revenue									2,378,563	1,681,609	1,130,946
Physical retail and other
Revenue from External Customer [Line Items]
Total net revenue									$ 710,407	$ 986,785	$ 661,946