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Fair Value Measurements (Financial Assets Measured At Fair Value On A Recurring and Nonrecurring Basis) (Details) - USD ($) $ in Millions	Oct. 28, 2017	Oct. 29, 2016
Marketable equity and debt securities	$ 100	$ 127
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Marketable equity and debt securities	23	19
Significant Observable Inputs (Level 2) [Member]
Marketable equity and debt securities	77	108
Significant Unobservable Inputs (Level 3) [Member]
Marketable equity and debt securities	$ 0	$ 0

- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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