Fair Value Measurements (Details Textuals) (USD $) In Millions	3 Months Ended	9 Months Ended
Jul. 31, 2011	Aug. 01, 2010	Jul. 31, 2011	Aug. 01, 2010	Oct. 31, 2010
Fair Value Measurements (Textuals) [Abstract]
Equity investments in privately-held companies	$ 61	$ 62	$ 61	$ 62	$ 59
Investments accounted for under cost method of accounting	39	39	39	39	40
Investments measured at fair value on a non-recurring basis	22	23	22	23	19
Long-term debt at carrying value	1,900		1,900		205
Estimated fair value of long-term debt	2,100		2,100		238
Amount of impairment charges recognized	0	8	0	13
Impairment charges associated with equity investments in privately-held companies	$ 0	$ 8	$ 0	$ 13

This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

+ References+ Details

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investment securities as of the balance sheet date which may include marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References+ Details

- 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