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
	Sep. 30, 2019	Sep. 30, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) recognized in Accumulated Other Comprehensive Loss	$ 0	$ (13)
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	(17)	15
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	(1)	2
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	(2)	(1)
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	5	(14)
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	(9)	14
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	(4)	(1)
(Gain) loss reclassified from Accumulated Other Comprehensive Loss	$ (6)	$ 2