Financial Instruments and Fair Value Measurements - Additional Information (Details) $ in Millions, $ in Millions	3 Months Ended	9 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2024 AUD ($)	Mar. 31, 2024 USD ($)
Cross currency interest rate derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative gain, net		$ 5
Estimates of net derivative gain (loss) related to cash flow hedges included in AOCL					$ 0
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	$ 1	3	$ 3
Cross currency interest rate derivatives | Cash Flow Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional value of derivative					49
Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative gain, net		$ 7
Estimates of net derivative gains related to cash flow hedges included in AOCL					14
Interest Rate Contract | Cash Flow Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional value of derivative					488
Interest Rate Contract | Cash Flow Hedging | Foxtel
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional value of derivative				$ 610
Foreign Exchange Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimates of net derivative gain (loss) related to cash flow hedges included in AOCL					(1)
Foreign Exchange Contract | Cash Flow Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional value of derivative					$ 40
Foreign Exchange Contract | Cash Flow Hedging | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Term of contract		1 year
Foxtel | Cash Flow Hedging | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed interest rate of derivative				4.248%	4.248%
Foxtel | Cash Flow Hedging | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed interest rate of derivative				4.338%	4.338%
Foxtel | Cross currency interest rate derivatives | Cash Flow Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, notional amount					$ 49
Fixed interest rate of derivative				4.375%	4.375%
Foxtel | Interest Rate Swap | Cash Flow Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, notional amount				$ 610