Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2020

Debt Disclosure [Abstract]

Summary of Debt

As of December 31, 2020 and 2019, long-term debt consisted of the following (in millions):

	December 31, 2020						December 31, 2019
	Outstanding Principal		Premium (Discount)		Long-Term Debt		Outstanding Principal		Premium (Discount)		Long-Term Debt
AR Facility due 2023 (1)	$	250.0	$	—	$	250.0	$	—	$	—	$	—
Consolidated Credit Facility due 2024 (2)	—		—		—		350.0		—		350.0
Term Loan due 2021 (3)	350.0		—		350.0		850.0		—		850.0
ENLK’s 4.40% Senior unsecured notes due 2024	521.8		1.1		522.9		550.0		1.5		551.5
ENLK’s 4.15% Senior unsecured notes due 2025	720.8		(0.6)		720.2		750.0		(0.7)		749.3
ENLK’s 4.85% Senior unsecured notes due 2026	491.0		(0.4)		490.6		500.0		(0.5)		499.5
ENLC's 5.625% Senior unsecured notes due 2028	500.0		—		500.0		—		—		—
ENLC’s 5.375% Senior unsecured notes due 2029	498.7		—		498.7		500.0		—		500.0
ENLK’s 5.60% Senior unsecured notes due 2044	350.0		(0.2)		349.8		350.0		(0.2)		349.8
ENLK’s 5.05% Senior unsecured notes due 2045	450.0		(5.7)		444.3		450.0		(5.9)		444.1
ENLK’s 5.45% Senior unsecured notes due 2047	500.0		(0.1)		499.9		500.0		(0.1)		499.9
Debt, long-term and current maturities	$	4,632.3	$	(5.9)	4,626.4		$	4,800.0	$	(5.9)	4,794.1
Debt issuance cost (4)					(32.6)						(29.8)
Less: Current maturities of long-term debt (3)					(349.8)						—
Long-term debt, net of unamortized issuance cost					$	4,244.0					$	4,764.3

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(1)Bears interest based on LMIR and/or LIBOR plus an applicable margin. The effective interest rate was 2.0% at December 31, 2020.

(2)Bears interest based on Prime and/or LIBOR plus an applicable margin. The effective interest rate was 3.3% at December 31, 2019.

(3)Bears interest based on Prime and/or LIBOR plus an applicable margin. The effective interest rate was 1.7% and 3.2% at December 31, 2020 and 2019, respectively. The Term Loan will mature on December 10, 2021. Therefore, the outstanding principal balance, net of discount and debt issuance costs, is classified as “Current maturities of long-term debt” on the consolidated balance sheet as of December 31, 2020.

(4)Net of accumulated amortization of $14.1 million and $10.9 million at December 31, 2020 and 2019, respectively.See applicable redemption provision terms below:

Issuance	Maturity Date of Notes	Early Redemption Date	Basis Point Premium
2024 Notes	April 1, 2024	Prior to January 1, 2024	25 Basis Points
2025 Notes	June 1, 2025	Prior to March 1, 2025	30 Basis Points
2026 Notes	July 15, 2026	Prior to April 15, 2026	50 Basis Points
2028 Notes	January 15, 2028	Prior to July 15, 2027	50 Basis Points
2029 Notes	June 1, 2029	Prior to March 1, 2029	50 Basis Points
2044 Notes	April 1, 2044	Prior to October 1, 2043	30 Basis Points
2045 Notes	April 1, 2045	Prior to October 1, 2044	30 Basis Points
2047 Notes	June 1, 2047	Prior to December 1, 2046	40 Basis Points

Activity related to the partial repurchases of our outstanding debt consisted of the following (in millions):

	Year Ended December 31, 2020
Debt repurchased	$	67.7
Aggregate payments	(36.0)
Net discount on repurchased debt	(0.3)
Accrued interest on repurchased debt	0.6
Gain on extinguishment of debt	$	32.0

Schedule of Maturities of Long-term Debt

Maturities for the long-term debt as of December 31, 2020 are as follows (in millions):

2021	$	350.0
2022	—
2023	250.0
2024	521.8
2025	720.8
Thereafter	2,789.7
Subtotal	4,632.3
Less: net discount	(5.9)
Less: debt issuance cost	(32.6)
Less: current maturities of long-term debt	(349.8)
Long-term debt, net of unamortized issuance cost	$	4,244.0