Debt - Senior Credit Facility (Details) - USD ($)			3 Months Ended			9 Months Ended
	Mar. 31, 2025	Mar. 31, 2023	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024	Jul. 01, 2022
Line of Credit Facility [Line Items]
Amortization of debt issuance costs						$ 15,661,000	$ 13,256,000
Revolving Credit Facility | Credit Agreement | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate		1.75%
Line of credit | Credit Agreement
Line of Credit Facility [Line Items]
Basis spread on variable rate						1.85%
Line of credit | Credit Agreement | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate		2.50%
Line of credit | Secured Debt | Credit Agreement
Line of Credit Facility [Line Items]
Aggregate amount of credit facility								$ 4,000,000,000.0
Interest expense incurred			$ 44,000,000		$ 59,000,000	$ 150,000,000	181,000,000
Increase (decrease) in interest expense			(6,000,000)		(11,000,000)	(27,000,000)	(34,000,000)
Amortization of debt issuance costs			5,000,000		$ 4,000,000	$ 14,000,000	$ 11,000,000
Line of credit | Term A Facility | Credit Agreement
Line of Credit Facility [Line Items]
Aggregate amount of credit facility								850,000,000
Adjusted variable rate floor		0.10%
Basis spread on variable rate						1.85%
Line of credit | Term A Facility | Credit Agreement | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate		1.75%
Line of credit | Term B Facility | Credit Agreement
Line of Credit Facility [Line Items]
Aggregate amount of credit facility								2,800,000,000
Adjusted variable rate floor	0.50%
Basis spread on variable rate	2.00%					2.00%
Debt extinguishment costs				$ 2,000,000
Line of credit | Revolving Credit Facility
Line of Credit Facility [Line Items]
Basis spread on variable rate						1.85%
Line of credit | Revolving Credit Facility | Credit Agreement
Line of Credit Facility [Line Items]
Aggregate amount of credit facility								350,000,000
Adjusted variable rate floor		0.10%
Available credit under lines of credit	$ 315,000,000		$ 315,000,000			$ 315,000,000
Line of credit | Revolving Credit Facility | Credit Agreement | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate		2.50%
Line of credit | Letter of Credit | Credit Agreement
Line of Credit Facility [Line Items]
Aggregate amount of credit facility								$ 50,000,000