Acquisitions (Details) (USD $) | 12 Months Ended | ||
|---|---|---|---|
Sep. 25, 2011 | Sep. 26, 2010 | Sep. 27, 2009 | |
| Acquisition [Abstract] | |||
| Effective date of Atheros acquisition | 5/24/2011 | ||
| Total cash consideration, net of cash acquired | $ 3,100,000,000 | ||
| Cash acquired from Atheros acquisition | 233,000,000 | ||
| Assumed equity | 106,000,000 | ||
| Business Acquisition, Purchase Price Allocation [Abstract] | |||
| Acquisition cost | 23,000,000 | ||
| Number of other businesses acquired | 9 | 6 | 1 |
| Cash consideration paid for other businesses acquired | 466,000,000 | 50,000,000 | 17,000,000 |
| Acquired technology-based intangible assets | 150,000,000 | 32,000,000 | |
| Technology-based intangible asset, weighted average useful life | 5 | 11 | |
| Goodwill recognized from other businesses acquired, expected to be deductible for tax purposes | $ 234,000,000 | ||
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- Definition The aggregate amount assigned to a major class of finite-lived intangible assets acquired either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The calculated weighted-average amortization period of a major class of finite-lived intangible assets acquired during the current period either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of cash paid to acquire the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The acquisition-date fair value of the equity interests of the acquirer, including the number of instruments or interests issued or issuable in consideration for the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Month, date and year in which the acquirer obtains control of the acquiree. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The number of businesses acquired by the entity during the period.
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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