POST RETIREMENT BENEFIT PLANS (Tables)

3 Months Ended

Jan. 31, 2020

Postemployment Benefits [Abstract]

Components of Net Periodic Pension Cost

The components of net periodic pension cost include the following:

	Three Months Ended January 31,
(in millions)	2020			2019
Service cost	$	3.2		$	2.5
Interest cost	6.6			5.2
Expected return on plan assets	(10.3		)	(6.2		)
Amortization of prior service cost	3.5			1.8
Net periodic pension cost	$	3.0		$	3.3

Components of Net Periodic Cost for Postretirement Benefits

The components of net periodic post-retirement benefit include the following:

	Three Months Ended January 31,
(in millions)	2020			2019
Interest cost	$	0.1		$	0.1
Amortization of prior service benefit	(0.1		)	(0.4		)
Net periodic post-retirement benefit	$	—		$	(0.3	)