Revenue Recognition - Schedule of Revenue by Product (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Disaggregation of Revenue [Line Items]
Net sales	$ 1,123.8	$ 1,100.2	$ 3,498.7	$ 3,296.3
CSCA
Disaggregation of Revenue [Line Items]
Net sales	703.5	722.3	2,217.9	2,160.2
CSCA | Nutrition
Disaggregation of Revenue [Line Items]
Net sales	130.7	124.4	435.4	376.7
CSCA | Upper Respiratory
Disaggregation of Revenue [Line Items]
Net sales	130.2	132.2	422.2	430.9
CSCA | Digestive Health
Disaggregation of Revenue [Line Items]
Net sales	117.1	119.6	368.0	363.3
CSCA | Pain and Sleep-Aids
Disaggregation of Revenue [Line Items]
Net sales	94.1	104.0	295.0	309.5
CSCA | Healthy Lifestyle
Disaggregation of Revenue [Line Items]
Net sales	79.4	73.8	220.1	208.7
CSCA | Oral Care
Disaggregation of Revenue [Line Items]
Net sales	76.5	83.6	237.8	230.6
CSCA | Skin Care
Disaggregation of Revenue [Line Items]
Net sales	47.6	48.9	150.7	138.4
CSCA | Women's Health
Disaggregation of Revenue [Line Items]
Net sales	10.2	12.4	34.6	32.6
CSCA | Vitamins, Minerals, and Supplements ("VMS")
Disaggregation of Revenue [Line Items]
Net sales	4.3	7.1	12.7	23.0
CSCA | Other CSCA
Disaggregation of Revenue [Line Items]
Net sales	13.4	16.3	41.4	46.5
CSCI
Disaggregation of Revenue [Line Items]
Net sales	420.3	377.9	1,280.7	1,136.1
CSCI | Upper Respiratory
Disaggregation of Revenue [Line Items]
Net sales	78.2	69.2	227.9	194.5
CSCI | Digestive Health
Disaggregation of Revenue [Line Items]
Net sales	10.8	8.2	30.0	27.4
CSCI | Pain and Sleep-Aids
Disaggregation of Revenue [Line Items]
Net sales	61.1	46.1	163.8	149.2
CSCI | Healthy Lifestyle
Disaggregation of Revenue [Line Items]
Net sales	52.4	47.6	179.4	165.6
CSCI | Oral Care
Disaggregation of Revenue [Line Items]
Net sales	24.8	21.7	75.5	71.2
CSCI | Skin Care
Disaggregation of Revenue [Line Items]
Net sales	86.7	81.1	293.1	257.5
CSCI | Women's Health
Disaggregation of Revenue [Line Items]
Net sales	28.5	28.7	89.5	65.7
CSCI | Vitamins, Minerals, and Supplements ("VMS")
Disaggregation of Revenue [Line Items]
Net sales	46.1	46.4	135.4	138.2
CSCI | Other CSCI
Disaggregation of Revenue [Line Items]
Net sales	$ 31.7	$ 28.9	$ 86.1	$ 66.8