Pension and Other Postretirement Benefits - Schedule of Components of Net Periodic Benefits Costs (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Domestic Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	$ 0	$ 1	$ 0	$ 1
Interest costs on projected benefit obligations	4	4	12	12
Expected return on plan assets	(4)	(5)	(14)	(16)
Amortization of deferred losses	1	0	3	2
Amortization of prior service (credits)	0	0	0	0
Settlements, curtailments and other	0	0	0	0
Net periodic benefits costs	1	0	1	(1)
Foreign Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	2	3	7	9
Interest costs on projected benefit obligations	10	11	33	37
Expected return on plan assets	(15)	(17)	(47)	(54)
Amortization of deferred losses	4	3	11	9
Amortization of prior service (credits)	0	0	0	0
Settlements, curtailments and other	0	0	(1)	0
Net periodic benefits costs	1	0	3	1
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	0	0	0	0
Interest costs on projected benefit obligations	2	2	4	5
Expected return on plan assets	0	0	0	0
Amortization of deferred losses	0	0	0	0
Amortization of prior service (credits)	(2)	(4)	(5)	(10)
Settlements, curtailments and other	0	0	0	0
Net periodic benefits costs	$ 0	$ (2)	$ (1)	$ (5)