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SHORT-TERM DEBT - Credit Facility (Details) - USD ($) $ in Millions |  | 6 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 13, 2019 | Apr. 30, 2023 | Apr. 30, 2022 | Jun. 18, 2021 | Apr. 21, 2021
Short-term Debt |  |  |  |  |
Repayment of commercial paper |  | $ (1,447) | $ (400) |  |
Proceeds from issuance of commercial paper |  | 1,412 | 575 |  |
Proceeds from revolving credit facility |  | 175 | $ 0 |  |
Line of Credit [Member] | 5 yr Unsecured Credit Facility |  |  |  |  |
Short-term Debt |  |  |  |  |
Initiation date of credit facility | Mar. 13, 2019 |  |  |  |
Maximum borrowing capacity of credit facility | $ 1,000 |  |  |  | $ 1,350
Credit faciity terms (in years) | five |  |  |  |
Expiration date of credit facility | Mar. 13, 2024 |  |  |  |
Amount outstanding on credit facility |  | 0 |  |  |
Line of Credit [Member] | Additional Incremental Term Loan Facility |  |  |  |  |
Short-term Debt |  |  |  |  |
Maximum borrowing capacity of credit facility | $ 500 |  |  |  | $ 500
Amount outstanding on credit facility |  | 0 |  |  |
Line of Credit [Member] | Commercial Paper |  |  |  |  |
Short-term Debt |  |  |  |  |
Maximum borrowing capacity of credit facility |  |  |  | $ 1,350 |
Amount outstanding on credit facility |  | $ 0 |  |  |

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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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Fair value of the amount outstanding under the credit facility. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 + 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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The cash inflow from borrowing by issuing commercial paper. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(f)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + 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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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