EMPLOYEE BENEFIT PLANS (Tables)

9 Months Ended

Sep. 30, 2021

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Schedule of net periodic benefit cost

The components of net periodic benefit cost related to the Company’s defined benefit plans consisted of the following:

(in millions)	Three Months Ended September 30,				Nine Months Ended September 30,
Pension Benefits	2021		2020		2021		2020
Components of net periodic benefit cost:
Service cost	$	14.4	$	15.0	$	43.1	$	43.9
Interest cost	1.3		1.8		4.0		5.3
Expected return on plan assets	(3.6)		(3.2)		(10.7)		(9.4)
Amortization of prior service cost and actuarial loss	0.1		0.1		0.1		0.2
Net periodic benefit cost	$	12.2	$	13.7	$	36.5	$	40.0

(in millions)	Three Months Ended September 30,				Nine Months Ended September 30,
Post-Retirement Medical Plan	2021		2020		2021		2020
Components of net periodic benefit cost:
Service cost	$	0.3	$	0.3	$	0.8	$	0.8
Interest cost	0.1		0.1		0.2		0.3
Amortization of prior service cost and actuarial loss	0.1		0.1		0.5		0.4
Net periodic benefit cost	$	0.5	$	0.5	$	1.5	$	1.5