Leases (Tables)

12 Months Ended

Dec. 31, 2022

Leases [Abstract]

Lease, Cost [Table Text Block]

	Year Ended December 31,
	2022		2021		2020
	(Millions)
Lease Cost:
Operating lease cost	$	34	$	35	$	37
Variable lease cost	26		15		19
Sublease income	—		(1)		(1)
Total lease cost	$	60	$	49	$	55
Cash paid for operating lease liabilities	$	33	$	35	$	30

	December 31,
	2022		2021
	(Millions)
Other Information:
Right-of-use asset (included in Regulatory assets, deferred charges, and other)	$	162	$	159
Operating lease liabilities:
Current (included in Accrued and other current liabilities)	$	25	$	23
Noncurrent (included in Regulatory liabilities, deferred income, and other)	$	148	$	141
Weighted-average remaining lease term – operating leases (years)	13		13
Weighted-average discount rate – operating leases	4.62%		4.56%

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

At December 31, 2022, the following table represents our operating lease maturities, including renewal provisions that we have assessed as being reasonably certain of exercise, for each of the years ended December 31:

	(Millions)
2023	$	31
2024	26
2025	20
2026	20
2027	19
Thereafter	122
Total future lease payments	238
Less: Amount representing interest	65
Total obligations under operating leases	$	173