Revenue Recognition - Schedule of Revenue by Product (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2023	Jul. 02, 2022	Jul. 01, 2023	Jul. 02, 2022
Disaggregation of Revenue [Line Items]
Net sales	$ 1,193.1	$ 1,121.7	$ 2,374.8	$ 2,196.2
CSCA
Disaggregation of Revenue [Line Items]
Net sales	750.8	728.0	1,514.4	1,438.0
CSCA | Nutrition
Disaggregation of Revenue [Line Items]
Net sales	164.8	125.1	304.7	252.3
CSCA | Upper Respiratory
Disaggregation of Revenue [Line Items]
Net sales	137.7	145.9	292.0	298.7
CSCA | Digestive Health
Disaggregation of Revenue [Line Items]
Net sales	126.7	125.1	250.9	243.7
CSCA | Pain and Sleep-Aids
Disaggregation of Revenue [Line Items]
Net sales	97.4	102.6	200.9	205.5
CSCA | Oral Care
Disaggregation of Revenue [Line Items]
Net sales	76.9	76.6	161.3	147.0
CSCA | Healthy Lifestyle
Disaggregation of Revenue [Line Items]
Net sales	67.3	67.3	140.7	134.9
CSCA | Skin Care
Disaggregation of Revenue [Line Items]
Net sales	50.8	48.6	103.1	89.5
CSCA | Women's Health
Disaggregation of Revenue [Line Items]
Net sales	12.5	12.0	24.4	20.2
CSCA | Vitamins, Minerals, and Supplements ("VMS")
Disaggregation of Revenue [Line Items]
Net sales	4.4	8.2	8.4	15.9
CSCA | Other CSCA
Disaggregation of Revenue [Line Items]
Net sales	12.3	16.6	28.0	30.3
CSCI
Disaggregation of Revenue [Line Items]
Net sales	442.4	393.7	860.4	758.2
CSCI | Upper Respiratory
Disaggregation of Revenue [Line Items]
Net sales	64.9	58.8	149.7	125.3
CSCI | Digestive Health
Disaggregation of Revenue [Line Items]
Net sales	10.4	10.0	19.2	19.2
CSCI | Pain and Sleep-Aids
Disaggregation of Revenue [Line Items]
Net sales	52.8	49.1	102.7	103.1
CSCI | Oral Care
Disaggregation of Revenue [Line Items]
Net sales	21.6	20.6	50.7	49.5
CSCI | Healthy Lifestyle
Disaggregation of Revenue [Line Items]
Net sales	60.6	59.1	127.0	118.0
CSCI | Skin Care
Disaggregation of Revenue [Line Items]
Net sales	123.0	102.5	206.4	176.4
CSCI | Women's Health
Disaggregation of Revenue [Line Items]
Net sales	31.9	23.3	61.0	37.0
CSCI | Vitamins, Minerals, and Supplements ("VMS")
Disaggregation of Revenue [Line Items]
Net sales	41.5	42.3	89.3	91.8
CSCI | Other CSCI
Disaggregation of Revenue [Line Items]
Net sales	$ 35.7	$ 28.0	$ 54.4	$ 37.9