Employee Benefit Plans - Schedule of Components of Stock-Based Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Total stock-based compensation expense	$ 73.2	$ 79.1	$ 131.9	$ 139.7
Operating expenses
Defined Benefit Plan Disclosure [Line Items]
Total stock-based compensation expense	8.5	9.2	17.1	18.3
Selling, general and administrative expenses
Defined Benefit Plan Disclosure [Line Items]
Total stock-based compensation expense	55.3	59.6	96.7	101.9
Research and development
Defined Benefit Plan Disclosure [Line Items]
Total stock-based compensation expense	$ 9.4	$ 10.3	$ 18.1	$ 19.5