Fair Value Measurements (Estimated Fair Values of Company's Long-Term Debt) (Details) (USD $) In Millions	Jul. 30, 2011	Jul. 31, 2010
Notional Amount [Member]
Long-term debt	$ 5,907	$ 7,207
Carrying Amount [Member]
Long-term debt	6,134	7,464
Fair Value [Member]
Long-term debt	$ 6,557	$ 7,324

- Definition

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

+ References+ Details