Segment Data (Schedule of Segment Reporting Information by Business Segment) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Net sales	$ 424.6	$ 490.9
Operating Income (Loss)	(102.6)	(20.8)
Depreciation and amortization	(133.2)	(155.1)
Employee Benefits and Share-based Compensation	(2.6)	(1.2)
Restructuring and related charges, net	(1.9)	(6.8)
Specialty Generics
Net sales	172.6	151.5
Restructuring and related charges, net	0.0	(3.5)
Corporate, Non-Segment
Corporate and unallocated expenses	(14.0)	(32.8)	[1]
Depreciation and amortization	(145.1)	(177.2)
Restructuring and related charges, net	(1.2)	(6.8)
Separation Costs	(4.9)	(2.0)	[2]
Operating Segments
Operating Income (Loss)	65.2	199.2
Operating Segments | Specialty Brands
Net sales	252.0	339.4
Operating Income (Loss)	32.4	164.8
Operating Segments | Specialty Generics
Net sales	172.6	151.5
Operating Income (Loss)	$ 32.8	$ 34.4

[1] Includes administration expenses and certain compensation, legal, environmental and other costs not charged to the Company's reportable segments.

[2] Represents costs included in selling, general and administrative expenses, primarily related to professional fees and costs incurred as the Company explores potential sales of non-core assets to enable further deleveraging post-emergence.