Retirement Benefit Obligations - Schedule of Components of Net Periodic Costs (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	$ 10	$ 12	$ 17
Interest costs on projected benefit obligations	66	72	74
Expected return on plan assets	(81)	(93)	(93)
Amortization of deferred losses	18	16	15
Amortization of prior service costs	(7)	(13)	(13)
Settlements, curtailments and other	2	2	7
Net periodic benefits costs- Total	8	(4)	7
Domestic Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	0	1	4
Interest costs on projected benefit obligations	17	17	16
Expected return on plan assets	(19)	(22)	(17)
Amortization of deferred losses	4	3	4
Amortization of prior service costs	0	0	0
Settlements, curtailments and other	0	2	4
Net periodic benefits costs- Total	2	1	11
Foreign Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	10	11	12
Interest costs on projected benefit obligations	44	49	51
Expected return on plan assets	(62)	(71)	(76)
Amortization of deferred losses	14	13	12
Amortization of prior service costs	0	0	0
Settlements, curtailments and other	2	0	3
Net periodic benefits costs- Total	8	2	2
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	0	0	1
Interest costs on projected benefit obligations	5	6	7
Expected return on plan assets	0	0	0
Amortization of deferred losses	0	0	(1)
Amortization of prior service costs	(7)	(13)	(13)
Settlements, curtailments and other	0	0	0
Net periodic benefits costs- Total	$ (2)	$ (7)	$ (6)