Retirement Benefit Obligations - Schedule of Amounts Recognized in Balance Sheets (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Defined Benefit Plan Disclosure [Line Items]
Net amount recognized	$ (217)	$ (353)
Domestic Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Other non-current assets	0	0
Other current liabilities	0	(1)
Retirement benefit obligations	(49)	(86)
Net amount recognized	(49)	(87)
Foreign Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Other non-current assets	67	6
Other current liabilities	(1)	(1)
Retirement benefit obligations	(84)	(88)
Net amount recognized	(18)	(83)
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Other non-current assets	0	0
Other current liabilities	(11)	(12)
Retirement benefit obligations	(139)	(171)
Net amount recognized	$ (150)	$ (183)