Borrowings - Narrative (Details)			12 Months Ended
	Jun. 14, 2023 USD ($) period	Jan. 25, 2019	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)
Debt Instrument [Line Items]
Carrying value			$ 6,606,000,000	$ 6,602,000,000
Revolving Credit Agreement
Debt Instrument [Line Items]
Long-term debt, term (in years)	5 years
Line of credit facility, maximum borrowing capacity	$ 1,000,000,000.0
Sub-limit for maximum amount of letters of credit issuable under revolving credit facility	150,000,000
Line of credit facility, accordion feature, increase limit	$ 1,750,000,000
Maturity extension number of one year periods | period	2
Maturity extension term	1 year
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]			Secured Overnight Financing Rate (SOFR) [Member]
Debt instrument variable interest rate			1.125%
Line of credit facility, facility fee percentage			0.125%
Borrowings outstanding			$ 0
Senior Notes
Debt Instrument [Line Items]
Early redemption in certain circumstances where a change in control is deemed to have occurred, percent of principal		101.00%
Line of Credit | Secured Debt | Term Loan Agreement
Debt Instrument [Line Items]
Line of credit facility, accordion feature, increase limit			$ 1,000,000,000.0
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]			Secured Overnight Financing Rate (SOFR) [Member]
Debt instrument variable interest rate			1.25%
Debt instrument, face amount			$ 1,000,000,000.0
Debt instrument, maturity period following closing of business combination			2 years
Line of credit facility, unused commitment fee percentage			0.125%
Carrying value			$ 0