Leases Lease Obligations (Tables)

12 Months Ended

Dec. 31, 2022

Leases [Abstract]

Lease, Cost [Table Text Block]

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

	2022		2021
Operating lease cost	$	4	$	8
Finance lease cost:
Amortization of right-of-use assets	$	14	$	7
Interest on lease liabilities	15		11
Total finance lease cost	$	29	$	18
Variable lease cost	$	31	$	24

Lease term and discount rates were as follows:

	December 31, 2022		December 31, 2021
Weighted Average Remaining Lease Term (in years)
Operating leases	44		40
Finance leases	22		23
Weighted Average Discount Rate
Operating leases	3.9	%	3.8	%
Finance leases	4.9	%	5.0	%

Lessee, Operating Leases

Supplemental information related to amounts and presentation of leases in the consolidated balance sheets is presented below (in millions):

	Balance Sheet Classification	As of December 31,
		2022		2021
Operating Leases:
Operating lease right-of-use assets	Other noncurrent assets	$	22	$	25
Current liabilities	Accrued expenses and other current liabilities	$	4	$	4
Noncurrent liabilities	Other noncurrent liabilities	18		22
Total operating lease liabilities *		$	22	$	26
Finance Leases:
Finance lease right-of-use assets	Electric utility plant, net	$	305	$	291
Current liabilities	Current portion of finance lease obligations	$	20	$	20
Noncurrent liabilities	Finance lease obligations, net of current portion	294		273
Total finance lease liabilities *		$	314	$	293

Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]

As of December 31, 2022, maturities of lease liabilities were as follows (in millions):

	Operating Leases		Finance Leases
2023	$	4	$	20
2024	3		20
2025	1		27
2026	1		27
2027	1		27
Thereafter	42		382
Total lease payments	52		503
Less imputed interest	(30)		(189)
Total	$	22	$	314

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

Supplemental cash flow information related to leases for the years indicated was as follows (in millions):

	2022		2021		2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	4	$	8	$	8
Operating cash flows from finance leases	15		11		10
Financing cash flows from finance leases	7		6		$	6
Right-of-use assets obtained in leasing arrangements:
Operating leases	$	—	$	(12)	$	—
Finance leases	29		153		—