SOFTWARE DEVELOPMENT COSTS AND LICENSES (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2024
Capitalized software development costs and licenses
Current	$ 62.7		$ 88.3
Non-current	1,606.0		1,446.5
Impairment of software development costs and licenses	23.3	$ 18.2
Software development costs, internally developed
Capitalized software development costs and licenses
Current	29.1		53.4
Non-current	1,532.0		1,237.0
Software development costs, externally developed
Capitalized software development costs and licenses
Current	14.2		6.1
Non-current	62.1		198.5
Licenses
Capitalized software development costs and licenses
Current	19.4		28.8
Non-current	$ 11.9		$ 11.0