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Borrowings - Schedule of Outstanding Borrowings (Details) - USD ($) $ in Millions	Jun. 30, 2023	Jun. 30, 2022	May 31, 2021	Dec. 31, 2019	Jun. 30, 2016
Line of Credit Facility [Line Items]
Principal mount	$ 3,430.0
Current portion of long-term debt	1,178.5	$ 0.0
Long-term debt	2,234.7	3,793.0
Total long-term debt	3,413.3	3,793.0
Unused available capacity	1,500.0
Fair value of fixed-rate notes	3,109.8
Long-term debt, excluding current portion
Line of Credit Facility [Line Items]
Principal mount	2,250.0
Unused available capacity	1,500.0
Fair value of fixed-rate notes	1,929.8
Senior Notes
Line of Credit Facility [Line Items]
Principal mount	2,250.0
Long-term debt	2,234.7	2,232.3
Fair value of fixed-rate notes	1,929.8
Fiscal 2021 Revolving Credit Facility \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Principal mount	0.0
Long-term debt	0.0	25.0
Unused available capacity	1,500.0
Fair value of fixed-rate notes	0.0
Fiscal 2021 Revolving Credit Facility, U.S. Dollar Tranche \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Principal mount	0.0
Long-term debt	0.0	25.0
Unused available capacity	1,100.0
Fair value of fixed-rate notes	0.0
Fiscal 2021 Revolving Credit Facility, Multicurrency Tranche \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Principal mount	0.0
Long-term debt	0.0	0.0
Unused available capacity	400.0
Fair value of fixed-rate notes	0.0
Fiscal 2021 Term Loan \| Term Loans
Line of Credit Facility [Line Items]
Principal mount	1,180.0
Current portion of long-term debt	1,178.5
Long-term debt	0.0	1,535.8
Fair value of fixed-rate notes	0.0
Fiscal 2021 Term Loan \| Term Loans \| Long-term debt, excluding current portion
Line of Credit Facility [Line Items]
Current portion of long-term debt		1,535.8
Fair value of fixed-rate notes	1,180.0
Fiscal 2016 Senior Notes \| Senior Notes
Line of Credit Facility [Line Items]
Principal mount	500.0				$ 500.0
Long-term debt	498.0	497.4
Fiscal 2016 Senior Notes \| Senior Notes \| Long-term debt, excluding current portion
Line of Credit Facility [Line Items]
Fair value of fixed-rate notes	471.4	484.3
Fiscal 2020 Senior Notes \| Senior Notes
Line of Credit Facility [Line Items]
Principal mount	750.0			$ 750.0
Long-term debt	744.3	743.4
Fair value of fixed-rate notes	641.0	658.0
Fiscal 2021 Senior Notes \| Senior Notes
Line of Credit Facility [Line Items]
Principal mount	1,000.0		$ 1,000.0
Long-term debt	992.5	991.5
Fiscal 2021 Senior Notes \| Senior Notes \| Long-term debt, excluding current portion
Line of Credit Facility [Line Items]
Fair value of fixed-rate notes	$ 817.4	$ 837.5