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DEBT DEBT (Tables)

9 Months Ended

Sep. 30, 2020

Debt Instrument [Line Items]

Debt [Table Text Block]

The following table sets forth our consolidated debt for the periods indicated:

						September 30, 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 at 2.7% as of December 31, 2019, due November 2021						—						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						387,000						—
$600,000 at 5.85% due January 2026						600,000						—
$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						714,251						750,000
$850,000 at 3.1% due March 2030						780,093						—
$600,000 at 6.35% due January 2031						600,000						—
$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						689,006						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						723,736						750,000
$500,000 at 4.5% due March 2050						453,585						—
$300,000 at 7.15% due January 2051						300,000						—
Guardian Pipeline
Weighted average 7.85% due December 2022						15,570						21,307
Total debt						14,385,638						12,813,704
Unamortized portion of terminated swaps						13,743						15,032
Unamortized debt issuance costs and discounts						(142,392)						(121,329)
Current maturities of long-term debt						(7,650)						(7,650)
Short-term borrowings (a)						—						(220,000)
Long-term debt						$	14,249,339					$	12,479,757

(a) - Individual issuances of commercial paper under our commercial paper program generally mature in 90 days or less.

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Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.

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