Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Sep. 24, 2016 USD ($) Item	Sep. 26, 2015 USD ($)	Sep. 27, 2014 USD ($)
Significant Accounting Policies [Line Items]
Deliverable in arrangements | Item	3
Measurement of tax position, minimum likelihood of tax benefits being realized upon ultimate settlement, percentage	50.00%	50.00%
Depreciation and amortization expense	$ 8,300,000,000	$ 9,200,000,000	$ 6,900,000,000
Goodwill impairment charges	0	0	0
Indefinite lived intangible asset impairment charges	$ 0	$ 0	$ 0
Minimum
Significant Accounting Policies [Line Items]
Amortized acquired intangible assets with definite lives useful period (in years)	3 years
Maximum
Significant Accounting Policies [Line Items]
Amortized acquired intangible assets with definite lives useful period (in years)	7 years
Building | Maximum
Significant Accounting Policies [Line Items]
Estimated useful lives of assets (Years)	30 years
Machinery and Equipment | Minimum
Significant Accounting Policies [Line Items]
Estimated useful lives of assets (Years)	1 year
Machinery and Equipment | Maximum
Significant Accounting Policies [Line Items]
Estimated useful lives of assets (Years)	5 years
Internal-Use Software | Minimum
Significant Accounting Policies [Line Items]
Estimated useful lives of assets (Years)	3 years
Internal-Use Software | Maximum
Significant Accounting Policies [Line Items]
Estimated useful lives of assets (Years)	5 years