Employee Benefit Plans (Tables)

6 Months Ended

Dec. 31, 2023

Retirement Benefits [Abstract]

Summary of Components of Stock-Based Compensation Expense

The following table represents pre-tax stock-based compensation expense for the three and six months ended December 31, 2023 and 2022, respectively:

	Three Months Ended				Six Months Ended
	December 31,				December 31,
	2023		2022		2023		2022
Operating expenses	$	7.4	$	6.5	$	14.8	$	12.5
Selling, general and administrative expenses	57.6		44.4		100.4		81.5
Research and development	8.6		7.5		17.2		15.0
Total stock-based compensation expense	$	73.6	$	58.4	$	132.4	$	109.0

Summary of Net Benefit Costs

The components of net pension income were as follows:

	Three Months Ended				Six Months Ended
	December 31,				December 31,
	2023		2022		2023		2022
Service cost – benefits earned during the period	$	1.3	$	1.2	$	2.6	$	2.3
Interest cost on projected benefits	21.1		19.5		42.3		39.0
Expected return on plan assets	(29.0)		(31.8)		(58.0)		(63.7)
Net amortization and deferral	0.8		0.4		1.5		1.0
Settlement charges and special termination benefits	—		—		—		1.4
Net pension (income)/expense	$	(5.8)	$	(10.7)	$	(11.6)	$	(20.0)