Consolidated Statements of Comprehensive Income / (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Jun. 30, 2024
Other comprehensive income/(loss), net of tax
Net earnings/(loss)	$ (101.0)	$ (227.0)	$ (1,066.0)	$ (146.0)	$ (1,066.0)
Foreign currency translation adjustments	(14.0)	27.0	(16.0)	10.0
Pension and other post-retirement adjustments	7.0	0.0	11.0	0.0
Available for sale investments	0.0	2.0	0.0	4.0
Net change in derivatives and hedges, net of tax	5.0	(2.0)	3.0	12.0
Other comprehensive income/(loss), net of tax	(2.0)	27.0	(2.0)	26.0	$ (2.0)
Comprehensive income/(loss)	$ (103.0)	$ (200.0)	$ (1,068.0)	$ (120.0)