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DEBT - Revolving Credit Agreements (Details) - USD ($) | 1 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021 | Sep. 30, 2023
Term Loan |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Actual debt to capitalization percentage |  |  |  | 41.10%
Revolving credit facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Debt to capitalization percentage, maximum |  |  |  | 60.00%
Outstanding borrowings |  |  |  | $ 0
Uncommitted incremental loan facility |  |  |  | $ 750,000,000
Revolving credit facility | 5-year unsecured revolving credit agreement June 2023 |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Debt instrument term (in years) | 5 years |  |  | 5 years
Maximum borrowing capacity | $ 2,500,000,000 |  |  |
Facility fee (percent) |  |  |  | 0.09%
Remaining borrowing capacity |  |  |  | $ 2,482,000,000
Revolving credit facility | 5-year unsecured revolving credit agreement June 2023 | Minimum |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Facility fee (percent) |  |  |  | 0.08%
Revolving credit facility | 5-year unsecured revolving credit agreement June 2023 | Maximum |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Facility fee (percent) |  |  |  | 0.20%
Revolving credit facility | 5-year unsecured revolving credit agreement June 2023 | SOFR |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Basis points spread on variable rate (percent) |  |  |  | 1.035%
Revolving credit facility | 5-year unsecured revolving credit agreement June 2023 | SOFR | Minimum |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Basis points spread on variable rate (percent) |  |  |  | 0.92%
Revolving credit facility | 5-year unsecured revolving credit agreement June 2023 | SOFR | Maximum |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Basis points spread on variable rate (percent) |  |  |  | 1.30%
Revolving credit facility | 5-year unsecured revolving credit agreement June 2021 |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Debt instrument term (in years) |  |  | 5 years |
Maximum borrowing capacity |  |  | $ 2,500,000,000 |
Revolving credit facility | 364-day unsecured revolving credit agreement June 2023 |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Debt instrument term (in years) | 364 days |  |  | 364 days
Maximum borrowing capacity | $ 1,500,000,000 |  |  |
Facility fee (percent) |  |  |  | 0.07%
Remaining borrowing capacity |  |  |  | $ 1,500,000,000
Revolving credit facility | 364-day unsecured revolving credit agreement June 2023 | Minimum |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Facility fee (percent) |  |  |  | 0.06%
Revolving credit facility | 364-day unsecured revolving credit agreement June 2023 | Maximum |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Facility fee (percent) |  |  |  | 0.15%
Revolving credit facility | 364-day unsecured revolving credit agreement June 2023 | SOFR |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Basis points spread on variable rate (percent) |  |  |  | 1.055%
Revolving credit facility | 364-day unsecured revolving credit agreement June 2023 | SOFR | Minimum |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Basis points spread on variable rate (percent) |  |  |  | 0.94%
Revolving credit facility | 364-day unsecured revolving credit agreement June 2023 | SOFR | Maximum |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Basis points spread on variable rate (percent) |  |  |  | 1.35%
Revolving credit facility | 364-day unsecured revolving credit agreement June 2022 |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Debt instrument term (in years) |  | 364 days |  |
Maximum borrowing capacity |  | $ 1,500,000,000 |  |
Letter of credit |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Outstanding borrowings |  |  |  | $ 18,000,000

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- Definition Debt Instrument, Covenant, Debt To Capitalization Percentage, Maximum + References No definition available. + Details
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- Definition Line Of Credit Facility, Uncommitted Incremental Capacity + References No definition available. + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(f)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 + 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 -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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