Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2021

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

Net Periodic Cost (Benefit)
	Pension Benefits				Other Postretirement Benefits
	Three Months Ended March 31,				Three Months Ended March 31,
	2021		2020		2021		2020
Service cost	$	1	$	1	$	—	$	—
Interest cost	24		32		1		2
Expected return on plan assets	(51)		(54)		(1)		(1)
Amortization of prior service credit	—		—		(2)		(2)
Amortization of actuarial loss	17		15		2		2
Net periodic cost (benefit)	$	(9)	$	(6)	$	—	$	1