Restructuring (Textuals) (Details) - USD ($) $ in Millions		1 Months Ended	2 Months Ended	3 Months Ended			7 Months Ended	9 Months Ended
	Aug. 11, 2023	Aug. 11, 2023	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Jun. 30, 2022	Aug. 11, 2023	Sep. 30, 2023	Sep. 30, 2022
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs								$ 150.0
Restructuring Reserve, Accrual Adjustment			$ 4.3			$ 54.9
DIP premium (non-cash)		$ (32.6)	0.0				$ (384.4)
Severance accrual		5.3	6.2		$ 20.7		38.9		$ 98.9
Severance Costs			3.3				6.8		54.9
Severance accrual		5.3	6.2		20.7		38.9		98.9
Segment Reconciling Items [Member]
Restructuring Cost and Reserve [Line Items]
Severance accrual	$ 5.3	4.8	5.1	$ 6.2	20.7		38.4		98.9
Severance accrual	$ 5.3	$ 4.8	$ 5.1	$ 6.2	$ 20.7		$ 38.4		$ 98.9