Long-Term Debt (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 28, 2014	Dec. 29, 2013	May 13, 2014
Debt Instrument [Line Items]
Carrying Cost	$ 1,559,895us-gaap_DebtInstrumentCarryingAmount	$ 1,388,285us-gaap_DebtInstrumentCarryingAmount
Carrying Cost, Current	0has_DebtInstrumentCarryingAmountCurrent	428,390has_DebtInstrumentCarryingAmountCurrent
Carrying Cost, Non-Current	1,559,895	959,895
Long-term debt, fair value	1,753,738us-gaap_LongTermDebtFairValue	1,487,204us-gaap_LongTermDebtFairValue
Fair Value, Current	0has_LongTermDebtFairValueCurrent	435,838has_LongTermDebtFairValueCurrent
Fair Value, Non-Current	1,753,738has_LongTermDebtFairValueNonCurrent	1,051,366has_LongTermDebtFairValueNonCurrent
Long-term debt, principal amount	1,559,895us-gaap_DebtInstrumentFaceAmount	1,384,895us-gaap_DebtInstrumentFaceAmount
Adjustments included in carrying costs related to interest rate swaps		3,390
Aggregate Amount of Long-Term Debt Maturing in Next 5 Years	350,000
Fair value at date of interest rate swap contract settlement			33,306has_HasFairValueAtDateOfSettlement
Notes 6.35% Due 2040 [Member]
Debt Instrument [Line Items]
Carrying Cost	500,000	500,000
Long-term debt, fair value	617,700	532,750
Interest rate on long-term debt (in hundredths)	6.35%	6.35%
Long-term debt, principal amount	500,000	500,000
Maturity Date	2040	2040
Notes 6.125% Due 2014 [Member]
Debt Instrument [Line Items]
Carrying Cost	0	428,390
Long-term debt, fair value	0	435,838
Interest rate on long-term debt (in hundredths)	6.125%	6.125%
Long-term debt, principal amount	0	425,000
Maturity Date	2014	2014
Notes 6.30% Due 2017 [Member]
Debt Instrument [Line Items]
Carrying Cost	350,000	350,000
Long-term debt, fair value	387,660	400,050
Interest rate on long-term debt (in hundredths)	6.30%	6.30%
Long-term debt, principal amount	350,000	350,000
Maturity Date	2017	2017
Range of interest rate adjustment dependent on the degree of decrease of the Company's credit rating, minimum (in hundredths)	0.25%	0.25%
Range of interest rate adjustment dependent on the degree of decrease of the Company's credit rating, maximum (in hundredths)	2.00%	2.00%
Debentures 6.60% Due 2028 [Member]
Debt Instrument [Line Items]
Carrying Cost	109,895	109,895
Long-term debt, fair value	128,698	118,566
Interest rate on long-term debt (in hundredths)	6.60%	6.60%
Long-term debt, principal amount	109,895	109,895
Maturity Date	2028	2028
Notes 3.15% Due 2021 Member [Member]
Debt Instrument [Line Items]
Carrying Cost	300,000	0
Long-term debt, fair value	302,700	0
Interest rate on long-term debt (in hundredths)	3.15%	0.00%
Long-term debt, principal amount	300,000	0
Maturity Date	2021	2021
Fair value at date of interest rate swap contract settlement			6,373
Notes 5.10% Due 2044 [Member]
Debt Instrument [Line Items]
Carrying Cost	300,000	0
Long-term debt, fair value	316,980	0
Interest rate on long-term debt (in hundredths)	5.10%	0.00%
Long-term debt, principal amount	300,000	0
Maturity Date	2044	2044
Fair value at date of interest rate swap contract settlement			$ 26,933

Aggregate Amount of Long-Term Debt Maturing in Next 5 Years

No definition available.

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- Definition

Amount of current long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

No definition available.

+ Details

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- Definition

Amount of non-current long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

No definition available.

+ Details

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- Definition

Adjustments included in carrying cost of long-term debt instruments related to the fair value of interest rate swaps or, if the interest rate swap contracts have been previously terminated, the unamortized portion of the fair value of interest rate swaps.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

The maximum adjustment to the effective interest rate borrowed under a debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	has_
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- Definition

The minimum adjustment to the effective interest rate borrowed under a debt instrument.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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- Definition

Interest rate swap contact settlement costs

+ References

No definition available.

+ Details

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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- Definition

The fair value amount of the non-current portion of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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- Definition

Year when the debt instrument is scheduled to be fully repaid, which may be presented in a variety of ways (year, month and year, day, month and year, quarter, etc)

+ References

No definition available.

+ Details

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- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

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Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

+ References

No definition available.

+ Details

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