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, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
(Gain) loss recognized in Accumulated Other Comprehensive Income	$ 15	$ 0	$ (3)	$ 0
Gain (loss) reclassified from Accumulated Other Comprehensive Income	(9)	0	1	0
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 Income	2	0	(2)	0
Gain (loss) reclassified from Accumulated Other Comprehensive Income	0	0	2	0
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 Income	9	0	(7)	0
Gain (loss) reclassified from Accumulated Other Comprehensive Income	(7)	0	5	0
Interest Rate Contract [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 Income	4	0	6	0
Gain (loss) reclassified from Accumulated Other Comprehensive Income	$ (2)	$ 0	$ (6)	$ 0