GOODWILL AND INTANGIBLE ASSETS, NET - Schedule of Intangibles (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Components of the intangible assets subject to amortization
Gross Carrying Amount	$ 5,657.4	$ 435.8
Accumulated Amortization	(1,204.2)	(169.3)
Net Book Value	$ 4,453.2	266.5
Weighted average useful life
Developed Game Technology
Components of the intangible assets subject to amortization
Gross Carrying Amount	$ 4,434.5	122.5
Accumulated Amortization	(744.0)	(69.5)
Net Book Value	$ 3,690.5	53.0
Weighted average useful life	7 years
Branding and Trade Names
Components of the intangible assets subject to amortization
Gross Carrying Amount	$ 395.2	11.1
Accumulated Amortization	(33.1)	(3.5)
Net Book Value	$ 362.1	7.6
Weighted average useful life	12 years
Game Engine Technology
Components of the intangible assets subject to amortization
Gross Carrying Amount	$ 323.2	30.0
Accumulated Amortization	(73.5)	(13.7)
Net Book Value	$ 249.7	16.3
Weighted average useful life	4 years
User Base
Components of the intangible assets subject to amortization
Gross Carrying Amount	$ 319.2	9.4
Accumulated Amortization	(274.4)	(8.9)
Net Book Value	$ 44.8	0.5
Weighted average useful life	1 year
Developer Relationships
Components of the intangible assets subject to amortization
Gross Carrying Amount	$ 57.0	0.0
Accumulated Amortization	(12.2)	0.0
Net Book Value	$ 44.8	0.0
Weighted average useful life	5 years
Advertising Technology
Components of the intangible assets subject to amortization
Gross Carrying Amount	$ 43.0	0.0
Accumulated Amortization	(12.3)	0.0
Net Book Value	$ 30.7	0.0
Weighted average useful life	3 years
Customer Relationships
Components of the intangible assets subject to amortization
Gross Carrying Amount	$ 31.0	0.0
Accumulated Amortization	(5.3)	0.0
Net Book Value	$ 25.7	0.0
Weighted average useful life	5 years
Intellectual Property
Components of the intangible assets subject to amortization
Gross Carrying Amount	$ 22.3	229.8
Accumulated Amortization	(18.2)	(42.3)
Net Book Value	$ 4.1	187.5
Weighted average useful life	6 years
In Place Lease
Components of the intangible assets subject to amortization
Gross Carrying Amount	$ 1.9	2.3
Accumulated Amortization	(1.1)	(0.7)
Net Book Value	$ 0.8	1.6
Weighted average useful life	4 years
Analytics Technology
Components of the intangible assets subject to amortization
Gross Carrying Amount	$ 30.1	30.7
Accumulated Amortization	(30.1)	(30.7)
Net Book Value	$ 0.0	$ 0.0
Weighted average useful life	0 years