Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 26, 2021	Dec. 27, 2020	Dec. 29, 2019
Income Statement [Abstract]
Net revenues	$ 6,420.4	$ 5,465.4	$ 4,720.2
Costs and expenses:
Cost of sales	1,927.5	1,718.9	1,807.8
Program cost amortization	628.6	387.1	85.6
Royalties	620.4	570.0	414.5
Product development	315.7	259.5	262.2
Advertising	506.6	412.7	413.7
Amortization of intangible assets	116.8	144.7	47.3
Selling, distribution and administration	1,432.7	1,252.1	1,037.0
Loss on disposal of business	108.8	0.0	0.0
Acquisition and related costs	0.0	218.6	0.0
Total costs and expenses	5,657.1	4,963.6	4,068.1
Operating profit	763.3	501.8	652.1
Non-operating expense (income):
Interest expense	179.7	201.1	101.9
Interest income	(5.4)	(7.4)	(30.1)
Other expense (income), net	7.1	(14.0)	(13.9)
Total non-operating expense, net	181.4	179.7	57.8
Earnings before income taxes	581.9	322.1	594.3
Income taxes	146.6	96.7	73.8
Net earnings	435.3	225.4	520.5
Net earnings attributable to noncontrolling interests	6.6	2.9	0.0
Net earnings attributable to Hasbro, Inc.	$ 428.7	$ 222.5	$ 520.5
Net earnings attributable to Hasbro, Inc. per common share:
Basic (in dollars per share)	$ 3.11	$ 1.62	$ 4.07
Diluted (in dollars per share)	3.10	1.62	4.05
Cash dividends declared (in dollars per share)	$ 2.72	$ 2.72	$ 2.72