Employee and Agent Benefits (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2024

Dec. 31, 2023

Other postretirement benefits

Defined Benefit Plans and Other Postretirement Benefit Plans

Components of Other Postretirement Benefits Net Periodic Benefit Cost (Income) (Table)

	Other postretirement benefits
	For the six months ended June 30,
	2024		2023
	(in millions)
Interest cost	$	1.3	$	1.4
Expected return on plan assets		(1.7)		(1.8)
Recognized net actuarial gain		(0.4)		(0.4)
Net periodic benefit income	$	(0.8)	$	(0.8)

	For the year ended December 31,
	2023		2022		2021
	(in millions)
Interest cost	$	2.8	$	1.9	$	1.8
Expected return on plan assets		(3.5)		(3.8)		(3.5)
Recognized net actuarial gain		(0.7)		(0.8)		(0.4)
Net periodic benefit income	$	(1.4)	$	(2.7)	$	(2.1)