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SHORT-TERM DEBT - Credit Facility and Commercial Paper (Details) - USD ($) $ in Millions |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Mar. 13, 2019 | Oct. 31, 2021 | Oct. 31, 2020 | Oct. 31, 2019 | Jun. 18, 2021 | Apr. 21, 2021 | May 26, 2020
Line of Credit Facility [Abstract] |  |  |  |  |  |  |
Short-term Debt |  | $ 0 | $ 798 | $ 805 |  |  |
Repayments |  | $ 0 | 1,413 | $ 702 |  |  |
5 yr unsecured credit facility | Line of Credit |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |
Credit facility initiation date | Mar. 13, 2019 |  |  |  |  |  |
Maximum borrowing capacity | $ 1,000 |  |  |  |  | $ 1,350 |
Short-term debt terms (years) |  | five |  |  |  |  |
Line of credit facility expiration date | Mar. 13, 2024 |  |  |  |  |  |
Outstanding balance |  | $ 0 | 0 |  |  |  |
Additional Incremental Term Loan Facility | Line of Credit |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |
Maximum borrowing capacity | $ 500 |  |  |  |  | $ 500 |
Outstanding balance |  | 0 | 0 |  |  |  |
Commercial Paper | Line of Credit |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  | $ 1,350 |  | $ 1,000
Outstanding balance |  | $ 0 | $ 75 |  |  |  |

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- Definition Date the credit facility terminates, in YYYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Date the credit facility first became available, in YYYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Description of the short-term debt arrangement, and disclosures pertaining to the underlying arrangements, including repayment terms, interest rates, restrictions on assets and activities, debt covenants, and other matters important to users of the financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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