Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2025	Dec. 29, 2024	Dec. 31, 2023
Income Statement [Abstract]
Net revenues	$ 4,701.3	$ 4,135.5	$ 5,003.3
Costs and expenses
Cost of sales	1,296.2	1,179.5	1,706.0
Program cost amortization	35.8	49.3	448.9
Royalties	368.9	284.2	428.3
Product development	385.6	294.1	306.9
Advertising	316.9	319.5	358.4
Amortization of intangible assets	66.0	68.3	83.0
Impairment of goodwill (Note 8)	1,021.9	0.0	1,191.2
Loss on disposal of business	25.0	37.4	539.0
Selling, distribution and administration	1,173.9	1,213.2	1,480.4
Total costs and expenses	4,690.2	3,445.5	6,542.1
Operating profit (loss)	11.1	690.0	(1,538.8)
Non-operating expense
Interest expense	163.4	171.2	186.3
Interest income	(28.6)	(47.3)	(23.0)
Other (income) expense, net	(21.7)	69.1	7.0
Total non-operating expense, net	113.1	193.0	170.3
(Loss) earnings before income taxes	(102.0)	497.0	(1,709.1)
Income tax expense (benefit)	216.2	102.6	(221.3)
Net (loss) earnings	(318.2)	394.4	(1,487.8)
Net earnings attributable to noncontrolling interests	4.2	8.8	1.5
Net (loss) earnings attributable to Hasbro, Inc.	$ (322.4)	$ 385.6	$ (1,489.3)
Net (loss) earnings per common share:
Basic (in dollars per share)	$ (2.30)	$ 2.77	$ (10.73)
Diluted (in dollars per share)	(2.30)	2.75	(10.73)
Cash dividends declared (in dollars per share)	$ 2.80	$ 2.10	$ 2.80