Retirement Benefit Obligations - Schedule of Amounts Recognized in Balance Sheets (Detail) - USD ($) $ in Millions	Jun. 30, 2022	Jun. 30, 2021
Defined Benefit Plan Disclosure [Line Items]
Other non-current assets	$ 133	$ 120
Other current liabilities	(10)	(11)
Retirement benefit obligations	(155)	(211)
Net amount recognized	(32)	(102)
Domestic Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Other non-current assets	0	0
Other current liabilities	0	(1)
Retirement benefit obligations	(40)	(53)
Net amount recognized	(40)	(54)
Foreign Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Other non-current assets	133	120
Other current liabilities	(2)	(2)
Retirement benefit obligations	(55)	(80)
Net amount recognized	76	38
Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Other non-current assets	0	0
Other current liabilities	(8)	(8)
Retirement benefit obligations	(60)	(78)
Net amount recognized	$ (68)	$ (86)