The aggregate fair value of assets that are already received, at the end of the reporting period, as collateral for derivative instruments.

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The maximum maturity period (in years) for the Company's long term marketable securities.

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The minimum maturity period (in years) for the Company's long term marketable securities.

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Percentage of Total Non Trade Receivables

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Percentage of Total Trade Receivables

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Range of time over which the entity is hedging its exposure to variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest or existing financial instruments.

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Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

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The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.

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Net gain (loss) from the increase (decrease) in fair value of derivative instrument not designated as hedging instrument.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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This item represents the total realized gain (loss) included in earnings for the period as a result of selling marketable securities categorized as trading, available-for-sale, or held-to-maturity. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.

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Maximum length of time over which the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments.

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Financial Instruments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 25, 2011 Year Store Country	Jun. 26, 2010	Jun. 25, 2011 Year Day Store Country	Jun. 26, 2010	Sep. 25, 2010
Financial Instruments Owned and Pledged as Collateral [Line Items]
Net realized gains on marketable securities	$ 14		$ 70
Maturities of long-term marketable securities, minimum (in years)	1		1
Maturities of long-term marketable securities, maximum (in years)	5		5
Range of time hedged in cash flow hedge			The Company typically hedges portions of its forecasted foreign currency exposure associated with revenue and inventory purchases for three to six months.
Hedged transactions, expected occurrence (in months)			6 months
Net deferred gain (loss) associated with cash flow hedges	21		21		(252)
Cash collateral received, Derivative Instruments	8		8
Cash collateral posted, Derivative Instruments					445
Net gain (loss) on foreign currency forward and option contracts not designated as hedging instruments	$ (45)	$ 25	$ (100)	$ 15
Customer One Concentration Risk
Financial Instruments Owned and Pledged as Collateral [Line Items]
Trade receivables from customer, percentage of total trade receivables	12.00%		12.00%		15.00%
Customer Two Concentration Risk
Financial Instruments Owned and Pledged as Collateral [Line Items]
Trade receivables from customer, percentage of total trade receivables					12.00%
Total Cellular Network Carriers
Financial Instruments Owned and Pledged as Collateral [Line Items]
Trade receivables from customer, percentage of total trade receivables	60.00%		60.00%		64.00%
Vendor One
Financial Instruments Owned and Pledged as Collateral [Line Items]
Vendor non-trade receivables, as percentage of total non-trade receivable	56.00%		56.00%		57.00%
Vendor Two
Financial Instruments Owned and Pledged as Collateral [Line Items]
Vendor non-trade receivables, as percentage of total non-trade receivable	22.00%		22.00%		24.00%