Accrued Expenses (Detail) (USD $) In Millions, unless otherwise specified	Dec. 27, 2014	Sep. 27, 2014	Dec. 28, 2013	Sep. 28, 2013
Schedule of Accrued Liabilities [Line Items]
Accrued warranty and related costs	$ 5,195us-gaap_StandardProductWarrantyAccrual	$ 4,159us-gaap_StandardProductWarrantyAccrual	$ 3,980us-gaap_StandardProductWarrantyAccrual	$ 2,967us-gaap_StandardProductWarrantyAccrual
Accrued marketing and selling expenses	1,960us-gaap_AccruedMarketingCostsCurrent	2,321us-gaap_AccruedMarketingCostsCurrent
Accrued taxes	1,642us-gaap_TaxesPayableCurrent	1,209us-gaap_TaxesPayableCurrent
Accrued compensation and employee benefits	1,316	1,209
Deferred margin on component sales	1,133us-gaap_OtherDeferredCreditsCurrent	1,057us-gaap_OtherDeferredCreditsCurrent
Other current liabilities	11,478us-gaap_OtherAccruedLiabilitiesCurrent	8,498us-gaap_OtherAccruedLiabilitiesCurrent
Total accrued expenses	$ 22,724us-gaap_AccruedLiabilitiesCurrent	$ 18,453us-gaap_AccruedLiabilitiesCurrent

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for the marketing, trade and selling of the entity's goods and services. Marketing costs would include expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services; costs of public relations and corporate promotions; and obligations incurred and payable for sales discounts, rebates, price protection programs, etc. offered to customers and under government programs. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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No definition available.

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- Definition

Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

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

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-Name Regulation S-X (SX)

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Carrying amount as of the balance sheet date of unearned revenue or income not otherwise specified in the taxonomy which is expected to be taken into income within one year or the normal operating cycle, if longer.

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- Definition

Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability.

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Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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