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Goodwill and Purchased Intangible Assets (Schedule Of Amortization Of Purchased Intangible Assets) (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
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Jul. 28, 2012
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Jul. 30, 2011
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Jul. 31, 2010
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| Acquired Intangible Asset Amortization by Statement of Operations Class [Line Items] | |||
| Amortization of purchased intangible assets | $ 807 | $ 1,020 | $ 768 |
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Cost Of Sales
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| Acquired Intangible Asset Amortization by Statement of Operations Class [Line Items] | |||
| Amortization of purchased intangible assets | 424 | 492 | 277 |
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Operating Expenses
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| Acquired Intangible Asset Amortization by Statement of Operations Class [Line Items] | |||
| Amortization of purchased intangible assets | 383 | 520 | 491 |
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Operating Expenses | Restructuring And Other Charges
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| Acquired Intangible Asset Amortization by Statement of Operations Class [Line Items] | |||
| Amortization of purchased intangible assets | $ 8 | ||