SOFTWARE DEVELOPMENT COSTS AND LICENSES (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Mar. 31, 2025
Capitalized software development costs and licenses
Current	$ 61.1		$ 80.8
Non-current	2,084.6		1,892.6
Impairment of software development costs and licenses	(4.6)	$ 23.3
Software development costs, internally developed
Capitalized software development costs and licenses
Current	37.4		62.9
Non-current	2,039.5		1,845.6
Software development costs, externally developed
Capitalized software development costs and licenses
Current	11.3		0.5
Non-current	41.2		39.7
Licenses
Capitalized software development costs and licenses
Current	12.4		17.4
Non-current	$ 3.9		$ 7.3