Consolidated Statements of Comprehensive Earnings (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ 233.9	$ 223.3	$ (521.3)	$ 420.9
Other comprehensive earnings (loss):
Foreign currency translation adjustments	2.3	(1.4)	36.6	(28.1)
Net gains (losses) on hedging activities, net of tax	1.3	(4.2)	(11.8)	0.7
Reclassifications to earnings, net of tax:
Net losses (gains) on hedging activities	0.7	0.1	(0.7)	1.2
Amortization of unrecognized pension and postretirement amounts	(0.1)	(0.1)	(0.1)	(0.1)
Total other comprehensive earnings (loss), net of tax	4.2	(5.6)	24.0	(26.3)
Total comprehensive earnings attributable to noncontrolling interests	0.7	0.1	2.7	1.0
Total comprehensive earnings (loss) attributable to Hasbro, Inc.	$ 237.4	$ 217.6	$ (500.0)	$ 393.6