Segment Reporting - Narrative (Details) $ in Millions	3 Months Ended
	Apr. 02, 2023 USD ($) segment	Mar. 27, 2022 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment	3
Revenue from External Customer [Line Items]
Net revenues	$ 1,001.0	$ 1,163.1
Gaming Including DUNGEONS & DRAGONS, MAGIC: THE GATHERING and Hasbro Gaming
Revenue from External Customer [Line Items]
Net revenues	386.5	378.8
MAGIC: THE GATHERING
Revenue from External Customer [Line Items]
Net revenues	$ 229.1	$ 197.2