Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2020

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

Net Periodic Cost (Benefit)
	Pension Benefits								Other Postretirement Benefits
	Three Months Ended September 30,				Nine Months Ended September 30,				Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019		2020		2019		2020		2019
Service cost	$	1	$	1	$	3	$	3	$	—	$	—	$	—	$	—
Interest cost	31		40		95		119		1		2		4		6
Expected return on plan assets	(53)		(57)		(161)		(170)		—		(1)		(2)		(3)
Amortization of prior service credit	—		—		—		—		(2)		(2)		(5)		(5)
Amortization of actuarial loss	15		11		45		33		2		1		5		4
Net periodic cost (benefit)	$	(6)	$	(5)	$	(18)	$	(15)	$	1	$	—	$	2	$	2