Financial Instruments and Fair Value Measurements - Summary of Hedges Classified as Current or Non-Current in Balance Sheets Based on Maturity Dates (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Jun. 30, 2021
Foreign currency derivatives | Cash Flow Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives, reported under other current assets	$ 1	$ 0
Cross currency interest rate derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives, reported under other current assets	45	0
Derivatives, reported under other non-current assets	36	73
Derivatives, reported under other current liabilities	(2)	0
Derivatives, reported under other non-current liabilities	(6)	(13)
Cross currency interest rate derivatives | Fair Value Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives, reported under other current assets	11	0
Derivatives, reported under other non-current assets	9	18
Interest rate derivatives | Cash Flow Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives, reported under other non-current assets	3	0
Derivatives, reported under other current liabilities	(5)	(6)
Derivatives, reported under other non-current liabilities	$ 0	$ (3)