Retirement Benefit Obligations - Schedule of Components of Net Periodic Costs (Income) (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	$ 9	$ 10	$ 12
Interest costs on projected benefit obligations	44	66	72
Expected return on plan assets	(75)	(81)	(93)
Amortization of deferred losses	21	18	16
Amortization of prior service costs	(4)	(7)	(13)
Settlements, curtailments and other	6	2	2
Net periodic benefits costs (income) - Total	1	8	(4)
Domestic Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	0	0	1
Interest costs on projected benefit obligations	12	17	17
Expected return on plan assets	(18)	(19)	(22)
Amortization of deferred losses	5	4	3
Amortization of prior service costs	0	0	0
Settlements, curtailments and other	3	0	2
Net periodic benefits costs (income) - Total	2	2	1
Foreign Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	9	10	11
Interest costs on projected benefit obligations	29	44	49
Expected return on plan assets	(57)	(62)	(71)
Amortization of deferred losses	16	14	13
Amortization of prior service costs	0	0	0
Settlements, curtailments and other	3	2	0
Net periodic benefits costs (income) - Total	0	8	2
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	0	0	0
Interest costs on projected benefit obligations	3	5	6
Expected return on plan assets	0	0	0
Amortization of deferred losses	0	0	0
Amortization of prior service costs	(4)	(7)	(13)
Settlements, curtailments and other	0	0	0
Net periodic benefits costs (income) - Total	$ (1)	$ (2)	$ (7)