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FAIR VALUE MEASUREMENTS - Recurring, Level 3 Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis - Level 3 - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jul. 28, 2019 | Jul. 29, 2018 | Jul. 28, 2019 | Jul. 29, 2018
Fair Value, Recurring Level 3 Measurements from Available-for-Sale Marketable Securities |  |  |  |
Beginning of period balance | $ 4 | $ 14 | $ 8 | $ 17
Principal payments |  | (4) | (5) | (7)
Other |  |  | 1 |
End of period balance | $ 4 | $ 10 | $ 4 | $ 10

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- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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