Discontinued Operations - Cash Flow Information (Details) - Discontinued Operations, Disposed of by Sale - RX - USD ($) $ in Millions			3 Months Ended
	Mar. 08, 2021	Dec. 31, 2020	Apr. 03, 2021	Mar. 28, 2020
Cash flows from discontinued operations operating activities:
Depreciation and amortization			$ 15.3	$ 24.0
Cash flows from discontinued operations investing activities:
Asset acquisitions	$ (53.3)	$ (16.4)	(69.7)	(0.1)
Additions to property, plant and equipment			$ (3.2)	$ (2.9)