Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Income Tax Contingency [Line Items]
Deferred tax asset	$ 2,251,000,000	$ 2,240,000,000
Unrecognized tax benefits	105,000,000	86,000,000	$ 69,000,000	$ 63,000,000
Valuation allowance recorded	1,646,000,000	1,588,000,000
Interest and penalties	1,000,000
Interest and penalty accrual	5,000,000	5,000,000	4,000,000
Amount that affect effective income tax rate	53,000,000
Undistributed earnings of foreign subsidiaries, indefinitely reinvested	800,000,000
Gross income tax paid	150,000,000	180,000,000	176,000,000
Income tax refunds	13,000,000	3,000,000	14,000,000
Minimum
Income Tax Contingency [Line Items]
Amount of uncertain tax liabilities	0
Maximum
Income Tax Contingency [Line Items]
Amount of uncertain tax liabilities	25,000,000
Foreign Tax Authority
Income Tax Contingency [Line Items]
Remeasurement of deferred tax assets		(149,000,000)
Capital loss carryforwards	32,000,000
U.S. Federal
Income Tax Contingency [Line Items]
Remeasurement of deferred tax assets		(156,000,000)
Capital loss carryforwards	90,000,000
U.S. States
Income Tax Contingency [Line Items]
Remeasurement of deferred tax assets			(75,000,000)
Capital loss carryforwards	11,000,000
State and Foreign Country Jurisdiction
Income Tax Contingency [Line Items]
Valuation allowance recorded	30,000,000
Net Operating Loss Carryforwards
Income Tax Contingency [Line Items]
Deferred tax asset	360,000,000	408,000,000
Unrecognized tax benefits	55,000,000	68,000,000
Valuation allowance recorded	124,000,000	122,000,000
Net Operating Loss Carryforwards | Foreign Tax Authority | Australia
Income Tax Contingency [Line Items]
Remeasurement of deferred tax assets		(31,000,000)
Net Operating Loss Carryforwards | U.S. Federal
Income Tax Contingency [Line Items]
Remeasurement of deferred tax assets			$ 64,000,000
Capital Loss Carryforward
Income Tax Contingency [Line Items]
Deferred tax asset	1,200,000,000	1,100,000,000
Valuation allowance recorded	1,200,000,000	$ 1,100,000,000
Capital Loss Carryforward | Australia
Income Tax Contingency [Line Items]
Capital loss carryforwards	2,600,000,000
Capital Loss Carryforward | U.K.
Income Tax Contingency [Line Items]
Capital loss carryforwards	1,600,000,000
Foreign Tax Credits | U.S. Federal
Income Tax Contingency [Line Items]
Foreign tax credits	35,000,000
General Business Tax Credit Carryforward | U.S. Federal
Income Tax Contingency [Line Items]
Research and development credits	$ 55,000,000