Pension and Other Postretirement Benefits - Schedule of Components of Net Periodic Costs (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Domestic Pension 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	4	4	8	8
Expected return on plan assets	(5)	(6)	(10)	(11)
Amortization of deferred losses	1	1	2	2
Amortization of prior service (credits)	0	0	0	0
Settlements, curtailments and other	0	0	0	0
Net periodic benefits costs	0	(1)	0	(1)
Foreign Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	3	3	5	6
Interest costs on projected benefit obligations	12	13	23	26
Expected return on plan assets	(16)	(18)	(32)	(37)
Amortization of deferred losses	3	3	7	6
Amortization of prior service (credits)	0	0	0	0
Settlements, curtailments and other	0	0	(1)	0
Net periodic benefits costs	2	1	2	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	1	2	2	3
Expected return on plan assets	0	0	0	0
Amortization of deferred losses	0	0	0	0
Amortization of prior service (credits)	(2)	(3)	(3)	(6)
Settlements, curtailments and other	0	0	0	0
Net periodic benefits costs	$ (1)	$ (1)	$ (1)	$ (3)