|
Income Taxes - Additional Information (Detail) (USD $)
|
Dec. 27, 2014
|
Sep. 27, 2014
|
|---|---|---|
| Income Tax Contingency [Line Items] | ||
| Gross unrecognized tax benefits | $ 4,400,000,000us-gaap_UnrecognizedTaxBenefits | $ 4,000,000,000us-gaap_UnrecognizedTaxBenefits |
| Gross unrecognized tax benefits that would affect effective tax rate, if recognized | 1,600,000,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate | 1,400,000,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate |
| Unrecognized tax benefits, gross interest and penalties accrued | $ 821,000,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued | $ 630,000,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|