Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2022

Retirement Benefits [Abstract]

Net Periodic (Benefit) Cost Components

The following tables present the components of net periodic (benefit) cost for the defined benefit plans:

	Pension Benefits
	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2022		2021		2022		2021
(In millions)
Service cost	$	1	$	1	$	2	$	2
Interest cost	20		17		57		53
Expected return on plan assets	(41)		(41)		(124)		(127)
Amortization of unrecognized net loss	8		12		24		37
Settlements					2		2
Regulatory asset (increase) decrease	(1)		1		1		1
Net periodic benefit	$	(13)	$	(10)	$	(38)	$	(32)

	Other Postretirement Benefits
	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2022		2021		2022		2021
(In millions)
Interest cost					$	1	$	1
Expected return on plan assets			$	(1)	(1)		(2)
Net periodic benefit	$	—	$	(1)	$	—	$	(1)