Financial Instruments and Fair Value Measurements - Summary of Derivative Instruments Designated as Cash Flow Hedges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 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	$ (19)	$ (3)	$ (10)	$ 20
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	(3)	(3)	(14)	(4)
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	(14)	(1)	(7)	21
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	(4)	(3)	(14)	(3)
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)	(2)	0	(1)
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	(2)	1	(2)	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)	(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	(3)	0	(3)	0
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	$ 3	$ 0	$ 3	$ 0