Discontinued Operations - Summary of Discontinued Operations in Statements of Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
Statement of Operations
Total	$ 2,073.3	$ 1,953.5	$ 1,795.4
Income tax expense	$ 9.5	4.3	4.5
Discontinued Operations, Disposed of by Sale
Statement of Operations
Revenue, net		97.1	605.0
Cost of sales		71.1	438.4
Operating (loss) income from discontinued operations		(0.5)	15.4
Gain on sale of discontinued operations		53.7	0.0
Income from discontinued operations, before income taxes		53.1	15.7
Income tax expense		28.0	2.0
Net income from discontinued operations, net of income taxes		25.1	13.7
Tax benefit, finalization of U.S. tax gain calculation		(28.0)	(2.0)
Discontinued Operations, Disposed of by Sale | S&D Disposition
Statement of Operations
Income tax expense		28.5
Discontinued Operations, Disposed of by Sale | S&D Disposition | Related Party
Statement of Operations
Total		$ 1.0	5.9
Discontinued Operations, Disposed of by Sale | Traditional CSD and Juice Business
Statement of Operations
Income tax expense			(3.0)
Tax benefit, finalization of U.S. tax gain calculation			$ 3.0