Financial Instruments and Fair Value Measurements - Summary of Derivative Instruments Designated as Cash Flow Hedges (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Cash Flow Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) recognized in Accumulated Other Comprehensive Loss	$ 11	$ 29	$ 32
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	(26)	(13)	(6)
Interest Rate Contract | Cash Flow Hedging | Interest expense, net
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) recognized in Accumulated Other Comprehensive Loss	11	29	30
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	(23)	(12)	(2)
Foreign Currency Derivatives | Cash Flow Hedging | Operating expenses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) recognized in Accumulated Other Comprehensive Loss	1	0	2
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	(2)	0	0
Cross Currency Interest Rate Derivatives | Interest expense, net
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	0	(1)	(4)
Cross Currency Interest Rate Derivatives | Cash Flow Hedging | Interest expense, net
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) recognized in Accumulated Other Comprehensive Loss	(1)	0	0
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	$ (1)	$ 0	$ 0