Employee Benefit Plans (Tables)

3 Months Ended

Dec. 31, 2022

Retirement Benefits [Abstract]

Components of Pension and Other Postretirement Benefit Income

The following table summarizes the components of pension and other postretirement benefit costs (income):

	Pension benefits				Other postretirement benefits
(In millions)	2022		2021		2022		2021
Three months ended December 31
Interest cost	$	20.6	$	10.8	$	0.4	$	0.2
Expected return on plan assets	(16.8)		(19.7)		—		—
Amortization of prior service credits	—		—		(0.5)		(0.6)
Net periodic benefit costs (income)	$	3.8	$	(8.9)	$	(0.1)	$	(0.4)