Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Income Tax Contingency [Line Items]
Deferred tax asset	$ 2,291,000,000	$ 2,446,000,000
Unrecognized tax benefits	86,000,000	69,000,000	$ 63,000,000	$ 58,000,000
Valuation allowance recorded	1,588,000,000	1,765,000,000
Interest and penalties	1,000,000	1,000,000	0
Interest and penalty accrual	5,000,000	4,000,000	3,000,000
Amount that affect effective income tax rate	63,000,000
Undistributed earnings of foreign subsidiaries, indefinitely reinvested	900,000,000
Gross income tax paid	180,000,000	176,000,000	99,000,000
Income tax refunds	3,000,000	14,000,000	$ 25,000,000
Maximum
Income Tax Contingency [Line Items]
Amount of uncertain tax liabilities	40,000,000
Minimum
Income Tax Contingency [Line Items]
Amount of uncertain tax liabilities	0
Foreign Tax Authority
Income Tax Contingency [Line Items]
Remeasurement of deferred tax assets	(149,000,000)
Capital loss carryforwards	29,000,000
Foreign Tax Authority | U.K.
Income Tax Contingency [Line Items]
Amount of change in enacted tax rate	18,000,000	34,000,000
U.S. Federal
Income Tax Contingency [Line Items]
Remeasurement of deferred tax assets	(156,000,000)
Capital loss carryforwards	81,000,000
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	29,000,000
Net Operating Loss Carryforwards
Income Tax Contingency [Line Items]
Deferred tax asset	408,000,000	484,000,000
Unrecognized tax benefits	68,000,000	62,000,000
Valuation allowance recorded	122,000,000	206,000,000
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	1,100,000,000	1,100,000,000
Valuation allowance recorded	1,100,000,000	1,100,000,000
Capital Loss Carryforward | Australia
Income Tax Contingency [Line Items]
Capital loss carryforwards	2,500,000,000
Capital Loss Carryforward | U.K.
Income Tax Contingency [Line Items]
Capital loss carryforwards	1,500,000,000
Release of valuation allowances	4,000,000	$ 6,000,000
Capital Loss Carryforward | U.S. Federal
Income Tax Contingency [Line Items]
Release of valuation allowances	3,000,000
General Business Tax Credit Carryforward | U.S. Federal
Income Tax Contingency [Line Items]
Research and development credits	46,000,000
Foreign Tax Credits | Foreign Tax Authority
Income Tax Contingency [Line Items]
Release of valuation allowances	26,000,000
Foreign Tax Credits | U.S. Federal
Income Tax Contingency [Line Items]
Release of valuation allowances	1,000,000
Foreign tax credits	$ 35,000,000