Financial Instruments and Fair Value Measurements - Summary of Derivative Instruments Designated as Cash Flow Hedges (Detail) - Cash Flow Hedging [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) recognized in Accumulated Other Comprehensive Loss	$ 45	$ (15)	$ 32	$ 3
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	(33)	9	(37)	(1)
Foreign Currency Derivatives [Member] | Operating Expense [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) recognized in Accumulated Other Comprehensive Loss	5	(2)	3	2
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	(1)	0	(3)	(2)
Cross Currency Interest Rate Derivatives [Member] | Interest (Expense) Income, Net [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) recognized in Accumulated Other Comprehensive Loss	43	(9)	35	7
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	(33)	7	(30)	(5)
Interest rate derivatives [Member] | Interest (Expense) Income, Net [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) recognized in Accumulated Other Comprehensive Loss	(3)	(4)	(6)	(6)
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	$ 1	$ 2	$ (4)	$ 6