Retirement Benefit Obligations - Schedule of Components of Net Periodic Costs (Income) (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	$ 1	$ 2	$ 2
Interest costs on projected benefit obligations	25	25	34
Expected return on plan assets	(51)	(50)	(59)
Amortization of deferred losses	19	20	16
Amortization of prior service credits	(4)	(4)	(3)
Settlements, curtailments and other	10	6	17
Net periodic benefit (income) costs – Total	0	(1)	7
Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	0	0	0
Interest costs on projected benefit obligations	1	2	3
Expected return on plan assets	0	0	0
Amortization of deferred losses	0	0	0
Amortization of prior service credits	(4)	(4)	(3)
Settlements, curtailments and other	0	0	0
Net periodic benefit (income) costs – Total	(3)	(2)	0
Domestic Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	0	0	0
Interest costs on projected benefit obligations	7	7	11
Expected return on plan assets	(15)	(13)	(16)
Amortization of deferred losses	5	5	5
Amortization of prior service credits	0	0	0
Settlements, curtailments and other	8	5	12
Net periodic benefit (income) costs – Total	5	4	12
Foreign Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	1	2	2
Interest costs on projected benefit obligations	17	16	20
Expected return on plan assets	(36)	(37)	(43)
Amortization of deferred losses	14	15	11
Amortization of prior service credits	0	0	0
Settlements, curtailments and other	2	1	5
Net periodic benefit (income) costs – Total	$ (2)	$ (3)	$ (5)