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LONG-TERM DEBT - Carrying Value (Details) - USD ($) $ in Millions | Oct. 31, 2019 | Oct. 31, 2018 | Feb. 01, 2016
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Debt Instrument Net Discount Premium Amount | $ 1,786 | $ 1,792 |
Interest Rate Swap | 0 | 7 | $ 300
Long-term Debt, Gross | 1,786 | 1,799 |
Senior Notes 2020 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument Net Discount Premium Amount |  | 499 |
Interest Rate Swap |  | 7 |
Long-term Debt, Gross |  | 506 |
Senior Notes 2022 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument Net Discount Premium Amount | 399 | 399 |
Interest Rate Swap | 0 | 0 |
Long-term Debt, Gross | 399 | 399 |
Senior Notes 2023 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument Net Discount Premium Amount | 597 | 597 |
Interest Rate Swap | 0 | 0 |
Long-term Debt, Gross | 597 | 597 |
Senior Notes 2026 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument Net Discount Premium Amount | 298 | 297 |
Interest Rate Swap | 0 | 0 |
Long-term Debt, Gross | 298 | 297 |
Senior Notes 2029 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument Net Discount Premium Amount | 492 | 0 |
Interest Rate Swap | 0 | 0 |
Long-term Debt, Gross | $ 492 | $ 0 |

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- Definition The carry amount of debt instrument, stated principal amount of the debt instrument at time of issuance net of any unamortized premium or discount. + References No definition available. + Details
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- Definition Forward based contracts in which two parties agree to swap periodic payments that are fixed at the outset of the swap contract with variable payments based on a market interest rate (index rate) over a specified period recorded in debt. + References No definition available. + Details
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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