LEASES (Tables)

6 Months Ended

Jun. 30, 2021

Leases [Abstract]

Lease Expense and Supplemental Cash Flow Information

The components of lease expense were as follows (in millions):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Finance leases:
Amortization of assets, included in Depreciation and amortization expense	$	2	$	2	$	4	$	4
Interest on lease liabilities, included in Interest expense	1		1		2		2
Operating leases:
Amortization of assets, included in Total operating expense	2		2		4		4
Interest on lease liabilities, included in Total operating expense	—		—		1		1
Total net lease cost	$	5	$	5	$	11	$	11

Supplemental Balance Sheet Information

Supplemental balance sheet information related to leases was as follows (in millions, except lease term and discount rate):

	June 30, 2021		December 31, 2020
Operating leases:
Operating lease right-of-use ("ROU") assets, included in Other assets	$	40	$	43
Current operating lease liabilities, included in Accrued expenses and other current liabilities	$	7	$	6
Noncurrent operating lease liabilities, included in Other liabilities	40		43
Total operating lease liabilities	$	47	$	49
Finance leases:
Property and equipment, at cost	$	170	$	170
Accumulated amortization	(37)		(33)
Property and equipment, net	$	133	$	137
Current obligations of finance leases, included in Current portion of project debt	$	6	$	6
Finance leases, net of current obligations, included in Project debt	69		72
Current obligations of finance leases, included in Current portion of long-term debt	1		1
Finance leases, net of current obligations, included in Long-term debt	6		6
Total finance lease liabilities	$	82	$	85

Schedule of Cash Flow, Supplemental Disclosures

Supplemental cash flow and other information related to leases was as follows (in millions, except lease term and discount rate):

	Six Months Ended June 30,
	2021			2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows related to operating leases	$	5		$	4
Financing cash flows related to finance leases	$	4		$	3
Weighted average remaining lease term (in years):
Operating leases	11.2			11.4
Finance leases	30.6			31.5
Weighted average discount rate:
Operating leases	4.54		%	4.59		%
Finance leases	5.06		%	5.06		%

Maturity of Lease Liabilities, Finance

Maturities of lease liabilities were as follows (in millions):

	June 30, 2021
	Operating Leases		Finance Leases
Remainder of 2021	$	5	$	6
2022	8		11
2023	7		11
2024	7		11
2025	6		10
2026 and thereafter	27		94
Total lease payments	60		143
Less: Amounts representing interest	(13)		(61)
Total lease obligations	$	47	$	82

Maturity of Lease Liabilities, Operating

Maturities of lease liabilities were as follows (in millions):

	June 30, 2021
	Operating Leases		Finance Leases
Remainder of 2021	$	5	$	6
2022	8		11
2023	7		11
2024	7		11
2025	6		10
2026 and thereafter	27		94
Total lease payments	60		143
Less: Amounts representing interest	(13)		(61)
Total lease obligations	$	47	$	82