Financial Instruments and Fair Value Measurements - Summary of Derivative Instruments Designated as Cash Flow Hedges (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Cash Flow Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) recognized in Accumulated Other Comprehensive Loss	$ 14	$ (6)	$ 4	$ 14
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	(8)	(4)	(22)	(8)
Interest rate derivatives - cash flow hedges | 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	10	(6)	3	15
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	(5)	(5)	(19)	(8)
Foreign currency derivatives - cash flow hedges | 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	2	0	2	(1)
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	0	1	(2)	1
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	0	(1)	(1)
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	2	0	(1)	0
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	$ (3)	$ 0	$ 0	$ 0