CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive(Loss) Income	Non-controlling interest
Beginning balance (in shares) at Mar. 31, 2021		137.6
Beginning balance (in shares) at Mar. 31, 2021				(22.4)
Beginning balance at Mar. 31, 2021	$ 3,331.9	$ 1.4	$ 2,288.8	$ (820.6)	$ 1,871.0	$ (8.7)
Increase (Decrease) in Stockholders' Equity
Net (loss) income	162.5				162.5
Change in cumulative foreign currency translation adjustment	(10.6)					(10.6)
Net unrealized gain on available-for-sale securities, net of taxes	(0.4)					(0.4)
Stock-based compensation	136.3		136.3
Repurchased common stock (in shares)				(1.3)
Repurchased common stock	(200.0)			$ (200.0)
Issuance of restricted stock, net of forfeitures and cancellations (in shares)		1.0
Net share settlement of restricted stock awards (in shares)		(0.3)
Net share settlement of restricted stock awards	(53.3)		(53.3)
Employee share purchase plan settlement (in shares)		0.1
Employee share purchase plan settlement	9.2		9.2
Issuance of shares related to Zynga Acquisition (in shares)		0.5
Issuance of shares related to Zynga Acquisition	94.1		94.1
Ending balance (in shares) at Sep. 30, 2021		138.9
Ending balance (in shares) at Sep. 30, 2021				(23.7)
Ending balance at Sep. 30, 2021	3,469.7	$ 1.4	2,475.1	$ (1,020.6)	2,033.5	(19.7)	$ 0.0
Beginning balance (in shares) at Jun. 30, 2021		138.8
Beginning balance (in shares) at Jun. 30, 2021				(22.4)
Beginning balance at Jun. 30, 2021	3,631.4	$ 1.4	2,417.7	$ (820.6)	2,023.3	(2.8)	12.4
Increase (Decrease) in Stockholders' Equity
Net (loss) income	10.2				10.2
Change in cumulative foreign currency translation adjustment	(16.7)					(16.7)
Net unrealized gain on available-for-sale securities, net of taxes	(0.2)					(0.2)
Stock-based compensation	62.5		62.5
Repurchased common stock (in shares)				(1.3)
Repurchased common stock	(200.0)			$ (200.0)
Issuance of restricted stock, net of forfeitures and cancellations (in shares)		0.1
Net share settlement of restricted stock awards	(5.1)		(5.1)
Call option related to Nordeus Acquisition	(12.4)						(12.4)
Ending balance (in shares) at Sep. 30, 2021		138.9
Ending balance (in shares) at Sep. 30, 2021				(23.7)
Ending balance at Sep. 30, 2021	$ 3,469.7	$ 1.4	2,475.1	$ (1,020.6)	2,033.5	(19.7)	$ 0.0
Beginning balance (in shares) at Mar. 31, 2022	115.4	139.0
Beginning balance (in shares) at Mar. 31, 2022	(23.7)			(23.7)
Beginning balance at Mar. 31, 2022	$ 3,809.7	$ 1.4	2,597.2	$ (1,020.6)	2,289.0	(57.3)
Increase (Decrease) in Stockholders' Equity
Net (loss) income	(361.0)				(361.0)
Change in cumulative foreign currency translation adjustment	(179.1)					(179.1)
Net unrealized gain on available-for-sale securities, net of taxes	0.1					0.1
Stock-based compensation	186.3		186.3
Issuance of restricted stock, net of forfeitures and cancellations (in shares)		1.8
Exercise of stock options (in shares)		0.9
Exercise of stock options	42.8		42.8
Net share settlement of restricted stock awards (in shares)		(0.6)
Net share settlement of restricted stock awards	(77.7)		(77.7)
Employee share purchase plan settlement (in shares)		0.1
Employee share purchase plan settlement	11.4		11.4
Issuance of shares related to Zynga Acquisition (in shares)		46.3
Issuance of shares related to Zynga Acquisition	5,377.7	$ 0.5	5,377.2
Stock-based compensation assumed in Zynga Acquisition	143.6		143.6
Issuance of shares for conversion of Convertible Notes (in shares)		3.7
Issuance of shares related to Zynga convertible notes	$ 479.7		479.7
Ending balance (in shares) at Sep. 30, 2022	167.5	191.2
Ending balance (in shares) at Sep. 30, 2022	(23.7)			(23.7)
Ending balance at Sep. 30, 2022	$ 9,433.5	$ 1.9	8,760.5	$ (1,020.6)	1,928.0	(236.3)
Beginning balance (in shares) at Jun. 30, 2022		189.9
Beginning balance (in shares) at Jun. 30, 2022				(23.7)
Beginning balance at Jun. 30, 2022	9,662.3	$ 1.9	8,616.5	$ (1,020.6)	2,185.0	(120.5)
Increase (Decrease) in Stockholders' Equity
Net (loss) income	(257.0)				(257.0)
Change in cumulative foreign currency translation adjustment	(116.3)					(116.3)
Net unrealized gain on available-for-sale securities, net of taxes	0.5					0.5
Stock-based compensation	125.0		125.0
Issuance of restricted stock, net of forfeitures and cancellations (in shares)		0.6
Exercise of stock options (in shares)		0.9
Exercise of stock options	42.8		42.8
Net share settlement of restricted stock awards (in shares)		(0.2)
Net share settlement of restricted stock awards	$ (23.8)		(23.8)
Ending balance (in shares) at Sep. 30, 2022	167.5	191.2
Ending balance (in shares) at Sep. 30, 2022	(23.7)			(23.7)
Ending balance at Sep. 30, 2022	$ 9,433.5	$ 1.9	$ 8,760.5	$ (1,020.6)	$ 1,928.0	$ (236.3)