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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Notes) | 3 Months Ended | 6 Months Ended
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Sep. 30, 2022 | Jun. 30, 2022
Accounting Policies [Abstract] |  |
Significant Accounting Policies [Text Block] |  | SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Our accompanying unaudited Consolidated Financial Statements have been prepared pursuant to the rules and regulations of the SEC. These statements have been prepared in accordance with GAAP and reflect all adjustments that, in our opinion, are necessary for a fair statement of the results for the interim periods presented. All such adjustments are of a normal recurring nature. The 2021 year-end Consolidated Balance Sheet data was derived from our audited Consolidated Financial Statements but does not include all disclosures required by GAAP. These unaudited Consolidated Financial Statements should be read in conjunction with our audited Consolidated Financial Statements in our Annual Report. Subsequent Event - On July 9, 2022, a fire occurred at our 210 MBbl/d Medford, Oklahoma, natural gas liquids fractionation facility. All personnel are safe and accounted for with evacuations of local residents taken as a precautionary measure. While the facility is not currently operational, we are using our integrated NGL pipeline system between the Mid-Continent and Gulf Coast, along with our fractionation and storage assets and fractionation and storage arrangements with industry peers, to provide midstream services. We are working to reduce future impacts to our suppliers and customers. We are cooperating with government agencies, as applicable, and we continue our efforts to determine the cause of the event and expect the Medford facility to remain out of service for an extended period. Subject to the terms and conditions of the policies and any applicable sub-limits, we have property damage and business interruption insurance coverage with a combined per occurrence limit of $2 billion and deductibles of $5 million per occurrence for property damage and a 45-day waiting period per occurrence for business interruption coverage. We are in the early stages of determining the full extent of property damage and developing information to support a claim for property damage and business interruption losses. We expect our insurance coverage to mitigate our financial loss, which cannot be reasonably estimated at this time. As a result of our insurance coverage, we do not currently anticipate that the Medford incident will have a material effect on our financial condition, results of operations or cash flows. However, the timing of insurance proceeds may impact our results in a given quarter or year. Recently Issued Accounting Standards Update - Changes to GAAP are established by the Financial Accounting Standards Board (FASB) in the form of ASUs to the FASB Accounting Standards Codification. We consider the applicability and impact of all ASUs. ASUs not discussed herein or in our Annual Report were assessed and determined to be either not applicable or clarifications of ASUs previously issued. There have been no new accounting pronouncements that have become effective or have been issued that are of significance or potential significance to us.
Subsequent Events | Subsequent Event - On July 9, 2022, a fire occurred at our 210 MBbl/d Medford, Oklahoma, natural gas liquids fractionation facility. All personnel are safe and accounted for with evacuations of local residents taken as a precautionary measure. While the facility is not currently operational, we are using our integrated NGL pipeline system between the Mid-Continent and Gulf Coast, along with our fractionation and storage assets and fractionation and storage arrangements with industry peers, to provide midstream services. We are working to reduce future impacts to our suppliers and customers. We are cooperating with government agencies, as applicable, and we continue our efforts to determine the cause of the event and expect the Medford facility to remain out of service for an extended period. Subject to the terms and conditions of the policies and any applicable sub-limits, we have property damage and business interruption insurance coverage with a combined per occurrence limit of $2 billion and deductibles of $5 million per occurrence for property damage and a 45-day waiting period per occurrence for business interruption coverage. We are in the early stages of determining the full extent of property damage and developing information to support a claim for property damage and business interruption losses. We expect our insurance coverage to mitigate our financial loss, which cannot be reasonably estimated at this time. As a result of our insurance coverage, we do not currently anticipate that the Medford incident will have a material effect on our financial condition, results of operations or cash flows. However, the timing of insurance proceeds may impact our results in a given quarter or year. |

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- Definition The entire disclosure for all significant accounting policies of the reporting entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123372394&loc=d3e18726-107790 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 855 -URI http://asc.fasb.org/topic&trid=2122774 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 855 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662 + Details
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