REVENUE FROM CONTRACTS WITH CUSTOMERS (Disaggregated Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Revenue from External Customer [Line Items]
Total net revenue	$ 539,007	$ 1,248,738	$ 492,667	$ 387,982	$ 450,274	$ 480,840	$ 443,562	$ 418,216	$ 2,668,394	$ 1,792,892	$ 1,779,748
Product
Revenue from External Customer [Line Items]
Total net revenue									1,319,033
Service and other
Revenue from External Customer [Line Items]
Total net revenue									1,349,361
Full game and other
Revenue from External Customer [Line Items]
Total net revenue									1,597,478
Recurrent Consumer Spending (RCS)
Revenue from External Customer [Line Items]
Total net revenue									1,070,916
Console
Revenue from External Customer [Line Items]
Total net revenue									2,233,861	1,463,306	1,440,724
PC and other
Revenue from External Customer [Line Items]
Total net revenue									434,533	329,586	339,024
Digital online
Revenue from External Customer [Line Items]
Total net revenue									1,681,609	1,130,946	921,734
Physical retail and other
Revenue from External Customer [Line Items]
Total net revenue									$ 986,785	$ 661,946	$ 858,014