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DEBT DEBT (Notes) | 3 Months Ended
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Mar. 31, 2020
Debt Disclosure [Abstract] |
Debt [Text Block] | DEBT The following table sets forth our consolidated debt for the periods indicated:
|  | March 31, 2020 |  | December 31, 2019
|  | (Thousands of dollars)
Commercial paper outstanding, bearing a weighted-average interest rate of 2.16% as of December 31, 2019 |  | $ | — |  |  | $ | 220,000 |
Senior unsecured obligations: |  |  |  |
$1,500,000 term loan, variable rate, due November 2021 |  | 1,250,000 |  |  | 1,250,000 |
$700,000 at 4.25% due February 2022 |  | 547,397 |  |  | 547,397 |
$900,000 at 3.375% due October 2022 |  | 900,000 |  |  | 900,000 |
$425,000 at 5.0% due September 2023 |  | 425,000 |  |  | 425,000 |
$500,000 at 7.5% due September 2023 |  | 500,000 |  |  | 500,000 |
$500,000 at 2.75% due September 2024 |  | 500,000 |  |  | 500,000 |
$500,000 at 4.9% due March 2025 |  | 500,000 |  |  | 500,000 |
$400,000 at 2.2% due September 2025 |  | 397,000 |  |  | — |
$500,000 at 4.0% due July 2027 |  | 500,000 |  |  | 500,000 |
$800,000 at 4.55% due July 2028 |  | 800,000 |  |  | 800,000 |
$100,000 at 6.875% due September 2028 |  | 100,000 |  |  | 100,000 |
$700,000 at 4.35% due March 2029 |  | 700,000 |  |  | 700,000 |
$750,000 at 3.4% due September 2029 |  | 734,251 |  |  | 750,000 |
$850,000 at 3.1% due March 2030 |  | 821,050 |  |  | — |
$400,000 at 6.0% due June 2035 |  | 400,000 |  |  | 400,000 |
$600,000 at 6.65% due October 2036 |  | 600,000 |  |  | 600,000 |
$600,000 at 6.85% due October 2037 |  | 600,000 |  |  | 600,000 |
$650,000 at 6.125% due February 2041 |  | 650,000 |  |  | 650,000 |
$400,000 at 6.2% due September 2043 |  | 400,000 |  |  | 400,000 |
$700,000 at 4.95% due July 2047 |  | 693,405 |  |  | 700,000 |
$1,000,000 at 5.2% due July 2048 |  | 1,000,000 |  |  | 1,000,000 |
$750,000 at 4.45% due September 2049 |  | 747,650 |  |  | 750,000 |
$500,000 at 4.5% due March 2050 |  | 489,625 |  |  | — |
Guardian Pipeline |  |  |  |  |  |
Weighted average 7.85% due December 2022 |  | 19,395 |  |  | 21,307 |
Total debt |  | 14,274,773 |  |  | 12,813,704 |
Unamortized portion of terminated swaps |  | 14,603 |  |  | 15,032 |
Unamortized debt issuance costs and discounts |  | (135,076 | ) |  | (121,329 | )
Current maturities of long-term debt |  | (7,650 | ) |  | (7,650 | )
Short-term borrowings (a) |  | — |  |  | (220,000 | )
Long-term debt |  | $ | 14,146,650 |  |  | $ | 12,479,757 |
(a) - Individual issuances of commercial paper under our commercial paper program generally mature in 90 days or less. $2.5 Billion Credit Agreement - Our $2.5 Billion Credit Agreement is a revolving credit facility and contains certain financial, operational and legal covenants. Among other things, these covenants include maintaining a ratio of indebtedness to adjusted EBITDA (EBITDA, as defined in our $2.5 Billion Credit Agreement, adjusted for all noncash charges and increased for projected EBITDA from certain lender-approved capital expansion projects) of no more than 5.0 to 1 at March 31, 2020. At March 31, 2020, we had no borrowings outstanding, our ratio of indebtedness to adjusted EBITDA was 4.5 to 1, and we were in compliance with all covenants under our $2.5 Billion Credit Agreement. Debt Issuances - In early March 2020, we completed an underwritten public offering of $1.75 billion senior unsecured notes consisting of $400 million, 2.2% senior notes due 2025; $850 million, 3.1% senior notes due 2030; and $500 million, 4.5% senior notes due 2050. The net proceeds, after deducting underwriting discounts, commissions and offering expenses, were $1.73 billion. A portion of the proceeds were used to pay all outstanding amounts under our commercial paper program. The remainder was, and will be, used for general corporate purposes, which may include repayment of other existing indebtedness and funding capital expenditures. Debt Repayments - In March 2020, we repurchased in the open market $67.0 million outstanding principal of certain of our senior notes for an aggregate repurchase price of $50.5 million with cash on hand. In connection with these open market repurchases, we recognized a $15.8 million gain on extinguishment of debt, which is included in other income in our Consolidated Statement of Income for the three months ended March 31, 2020. Debt Guarantees - We, ONEOK Partners and the Intermediate Partnership have cross guarantees in place for our and ONEOK Partners’ indebtedness. For additional discussion of our $2.5 Billion Credit Agreement and our $1.5 Billion Term Loan Agreement, see Note F of the Notes to Consolidated Financial Statements in our Annual Report.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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