Pension and Other Post-Retirement Benefits (Tables)

3 Months Ended

Mar. 31, 2022

Retirement Benefits [Abstract]

Components of net periodic benefit costs

Presented in the table below are the components of net periodic benefit credit:

	For the Three Months Ended March 31,
	2022		2021
Components of net periodic pension benefit credit:
Service cost	$	8	$	9
Interest cost	16		17
Expected return on plan assets	(31)		(32)
Amortization of prior service credit	(1)		(1)
Amortization of actuarial loss	5		7
Net periodic pension benefit credit	$	(3)	$	—
Components of net periodic other postretirement benefit credit:
Service cost	$	1	$	1
Interest cost	3		2
Expected return on plan assets	(5)		(5)
Amortization of prior service credit	(8)		(8)
Net periodic other postretirement benefit credit	$	(9)	$	(10)