Consolidated Statements of Comprehensive Earnings - USD ($) $ in Millions	3 Months Ended
	Mar. 27, 2022	Mar. 28, 2021
Statement of Comprehensive Income [Abstract]
Net earnings	$ 62.9	$ 117.5
Other comprehensive earnings:
Foreign currency translation adjustments, net of tax	(10.7)	(16.1)
Unrealized holding gains on available-for-sale securities, net of tax	0.2	0.0
Net (losses) gains on cash flow hedging activities, net of tax	(1.2)	5.6
Reclassifications to earnings, net of tax:
Net gains on cash flow hedging activities	0.0	(1.1)
Amortization of unrecognized pension and postretirement amounts	0.1	0.2
Current period other comprehensive earnings (loss)	(11.6)	(11.4)
Total comprehensive earnings attributable to noncontrolling interests	1.7	1.3
Total comprehensive earnings attributable to Hasbro, Inc.	$ 49.6	$ 104.8