Financial Instruments and Fair Value Measurements - Additional Information (Detail) $ in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2023 AUD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimates of net derivative gains related to cash flow hedges included in Accumulated other comprehensive loss	$ (1)
Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimates of net derivative gains related to cash flow hedges included in Accumulated other comprehensive loss	(22)
Cross Currency Interest Rate Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimates of net derivative gains related to cash flow hedges included in Accumulated other comprehensive loss	(1)
Cross Currency Interest Rate Derivatives | Other, Net
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain from discontinued cash flow hedges	4	$ 25	$ 11
Cash Flow Hedging | Foreign Exchange Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative notional amount	83
Cash Flow Hedging | Interest Rate Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional value of derivative	497
Cash Flow Hedging | Interest Rate Contract | Foxtel
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional value of derivative				$ 250
Cash Flow Hedging | Cross Currency Interest Rate Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional value of derivative	120
Fair Value Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative notional amount	30
Fair Value Hedging | Accounting Standards Update 2017-12
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cumulative hedging adjustments included in the carrying amount	$ 0