Income Taxes - Additional Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Nov. 02, 2013
Income Tax Disclosure [Abstract]
Decrease In Gross Unrecognized Tax Benefits Within The Next 12 Months	$ 18
Benefit To Income Taxes If Decrease In Gross Unrecognized Tax Benefits Within 12 Months Are Recognized	0
Interest Expense Reversed	$ 18

Benefit To Income Taxes If Decrease In Gross Unrecognized Tax Benefits Are Recognized Within Next 12 Months.

No definition available.

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