Consolidated Statements of Comprehensive Earnings - USD ($) $ in Millions	12 Months Ended
	Dec. 25, 2022	Dec. 26, 2021	Dec. 27, 2020
Statement of Comprehensive Income [Abstract]
Net earnings	$ 203.0	$ 435.3	$ 225.4
Other comprehensive earnings (loss):
Foreign currency translation adjustments, net of tax	(45.4)	(61.9)	10.1
Unrealized holding (losses) gains on available-for-sale securities, net of tax	(0.3)	(0.1)	0.6
Net gains on cash flow hedging activities, net of tax	10.2	13.5	2.4
Changes in unrecognized pension amounts, net of tax	30.8	3.4	(6.6)
Reclassifications to earnings, net of tax:
Net (gains) losses on cash flow hedging activities	(16.2)	2.6	(19.3)
Amortization of unrecognized pension and postretirement amounts	1.3	2.2	2.0
Other comprehensive loss, net of tax	(19.6)	(40.3)	(10.8)
Total comprehensive earnings, net of tax	183.4	395.0	214.6
Total comprehensive (loss) earnings attributable to noncontrolling Interests	(0.5)	6.6	2.9
Total comprehensive earnings attributable to Hasbro, Inc.	$ 183.9	$ 388.4	$ 211.7