Employee Benefit Plans

9 Months Ended

Sep. 30, 2022

Compensation And Retirement Disclosure [Abstract]

Employee Benefit Plans

9. EMPLOYEE BENEFIT PLANS

Components of net periodic benefit cost (credit) recorded by DESC were as follows:

(millions)	Pension Benefits						Other Postretirement Benefits
Three Months Ended September 30,	2022			2021			2022		2021
Service cost	$	2		$	3		$	—	$	—
Interest cost		5			5			1		1
Expected return on assets		(12	)		(12	)		—		—
Amortization of actuarial losses		1			1			—		—
Net periodic benefit cost (credit)	$	(4	)	$	(3	)	$	1	$	1
Nine Months Ended September 30,
Service cost	$	6		$	7		$	1	$	1
Interest cost		16			15			4		4
Expected return on assets		(37	)		(36	)		—		—
Amortization of actuarial losses		1			4			—		—
Net periodic benefit cost (credit)	$	(14	)	$	(10	)	$	5	$	5

During the three and nine months ended September 30, 2022, DESC made no contributions to its pension trust and does not expect to make any such contributions in 2022. DESC recovers current pension costs through either a rate rider that may be adjusted annually for retail electric operations or through cost of service rates for gas operations.