Summary of Significant Accounting Policies (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 29, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 30, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Dec. 29, 2013 Position	Dec. 30, 2012	Dec. 25, 2011
Significant Accounting Policies [Line Items]
Equity method ownership interests, lowest (in hundredths)	20.00%								20.00%
Equity method ownership interests, highest (in hundredths)	50.00%								50.00%
Maximum period for an investment to be classified as highly liquid									three months
Finished goods percentage of inventory (in hundredths)	90.00%				91.00%				90.00%	91.00%
Number of significant equity method investments									1
Percentage ownership interest in joint venture	50.00%								50.00%
Percentage of other intangibles being amortized in proportion to projected sales (in hundredths)									12.00%
Shipping and handling expense									$ 155,316	$ 157,035	$ 173,028
2014 expected pension plan contribution									6,400
Options excluded from calculation of diluted earnings per share (in shares)									760	3,409	1,851
Earnings per share, basic [Abstract]
Net earnings attributable to Hasbro, Inc.	129,815	126,574	36,480	(6,671)					286,198	335,999	385,367
Average shares outstanding (in shares)									130,186	130,067	133,823
Net earnings per share, basic (in dollars per share)	$ 0.99	$ 0.97	$ 0.28	$ (0.05)	$ 1.00	$ 1.26	$ 0.33	$ (0.02)	$ 2.20	$ 2.58	$ 2.88
Earnings per share, diluted [Abstract]
Net earnings attributable to Hasbro, Inc.	$ 129,815	$ 126,574	$ 36,480	$ (6,671)					$ 286,198	$ 335,999	$ 385,367
Average shares outstanding (in shares)									130,186	130,067	133,823
Effect of dilutive securities: [Abstract]
Options and other share-based awards (in shares)									1,602	1,859	2,874
Equivalent shares (in shares)									131,788	131,926	136,697
Net earnings per share, diluted (in dollars per share)	$ 0.98	$ 0.96	$ 0.28	$ (0.05)	$ 0.99	$ 1.24	$ 0.33	$ (0.02)	$ 2.17	$ 2.55	$ 2.82
Minimum [Member]
Significant Accounting Policies [Line Items]
Finite-lived intangible assets, useful life									5 years
Maximum [Member]
Significant Accounting Policies [Line Items]
Finite-lived intangible assets, useful life									20 years
Land and Improvements [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Depreciation period									15 years
Land and Improvements [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Depreciation period									19 years
Buildings and Improvements [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Depreciation period									15 years
Buildings and Improvements [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Depreciation period									25 years
Machinery and Equipment [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Depreciation period									3 years
Machinery and Equipment [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Depreciation period									12 years
Tools, Dies and Molds [Member]
Significant Accounting Policies [Line Items]
Depreciation period									3 years