PENSION AND OTHER RETIREMENT BENEFITS (Tables)

6 Months Ended

Jun. 30, 2021

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Expense Related to Post-Retirement Plans

The components of net periodic benefit expense related to the Retirement Plans and Other Retirement Plans are as follows:

	Three Months Ended June 30,
	Pension Plans				Other Retirement Plans
	2021		2020		2021		2020
Components of net periodic expense
Service cost	$	5	$	3	$	1	$	1
Interest cost	3		5		1		—
Expected return on plan assets	(6)		(5)		—		—
Amortization of net actuarial loss from earlier periods	3		1		—		—
Loss on settlement of pension obligation	7		—		—		—
Net periodic expense	$	12	$	4	$	2	$	1

	Six Months Ended June 30,
	Pension Plans				Other Retirement Plans
	2021		2020		2021		2020
Components of net periodic expense
Service cost	$	10	$	8	$	2	$	2
Interest cost	7		9		1		—
Expected return on plan assets	(13)		(10)		—		—
Amortization of net actuarial loss from earlier periods	5		3		—		—
Loss on settlement of pension obligation	7		—		—		—
Net periodic expense	$	16	$	10	$	3	$	2