POSTRETIREMENT BENEFIT PLANS (Tables)

3 Months Ended

Mar. 31, 2021

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost Table

The following table provides the components of net periodic benefit cost for pension plans and other employee-related benefit plans for the three months ended March 31, 2021 and 2020. 

	2021									2020
For the Three Months Ended March 31	Pension			Other Benefits			Total			Pension			Other Benefits			Total
Service cost		$	0.4		$	0.2		$	0.6		$	0.3		$	0.2		$	0.5
Interest cost		0.2			0.5			0.7			2.3			0.7			3.0
Expected return on plan assets		—			—			—			(2.2)			—			(2.2)
Amortization of prior service benefit		—			(1.3)			(1.3)			—			(1.2)			(1.2)
Amortization of net actuarial loss		0.5			0.7			1.2			1.8			0.6			2.4
Total net periodic benefit cost		$	1.1		$	0.1		$	1.2		$	2.2		$	0.3		$	2.5