Pension and Other Postretirement Benefits - Schedule of Components of Net Periodic Costs (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Settlements, curtailments and other		$ 0		$ 1
Domestic Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	1	0	1	4
Interest costs on projected benefit obligations	4	4	12	12
Expected return on plan assets	(5)	(5)	(16)	(13)
Amortization of deferred losses	0	1	2	4
Amortization of prior service (credits)	0	0	0	0
Settlements, curtailments and other	0	0	0	4
Net periodic benefits costs	0	0	(1)	11
Foreign Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	3	3	9	9
Interest costs on projected benefit obligations	11	13	37	38
Expected return on plan assets	(17)	(19)	(54)	(56)
Amortization of deferred losses	3	3	9	9
Amortization of prior service (credits)	0	0	0	0
Settlements, curtailments and other	0	0	0	0
Net periodic benefits costs	0	0	1	0
Postretirement 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	2	1	5	5
Expected return on plan assets	0	0	0	0
Amortization of deferred losses	0	0	0	0
Amortization of prior service (credits)	(4)	(3)	(10)	(10)
Settlements, curtailments and other	0	0	0	0
Net periodic benefits costs	$ (2)	$ (1)	$ (5)	$ (4)