Consolidated Statements of Comprehensive Earnings (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jul. 02, 2023	Jun. 30, 2024	Jul. 02, 2023
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ 138.5	$ (234.9)	$ 197.6	$ (256.6)
Other comprehensive earnings (loss):
Foreign currency translation adjustments, net of tax	(22.8)	24.8	(26.7)	49.1
Net gains (losses) on cash flow hedging activities, net of tax	3.2	(2.6)	4.9	(7.1)
Reclassifications to earnings, net of tax:
Net losses (gains) on cash flow hedging activities	0.7	1.8	1.1	(0.4)
Amortization of unrecognized pension and postretirement amounts	0.0	(0.1)	0.0	(0.2)
Total other comprehensive (loss) earnings, net of tax	(18.9)	23.9	(20.7)	41.4
Total comprehensive earnings attributable to noncontrolling interests	0.0	0.1	0.9	0.5
Total comprehensive earnings (loss) attributable to Hasbro, Inc.	$ 119.6	$ (211.1)	$ 176.0	$ (215.7)