Retirement Benefit Obligations - Schedule of Accumulated and Projected Benefit Obligations and Fair Value of Plan Assets for Funded and Unfunded Pension Plans (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	$ 1,590	$ 1,424
Fair value of plan assets	1,535	1,286
Domestic Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	350	342	257
Accumulated benefit obligation	350	319
Fair value of plan assets	301	255	189
Foreign Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	1,252	1,114	1,159
Accumulated benefit obligation	1,240	1,105
Fair value of plan assets	1,234	1,031	960
Funded Plans [Member] | Domestic Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	339	324
Accumulated benefit obligation	339	302
Fair value of plan assets	301	255
Funded Plans [Member] | Foreign Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	1,183	1,057
Accumulated benefit obligation	1,171	1,048
Fair value of plan assets	1,234	1,031
Unfunded Plans [Member] | Domestic Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	11	18
Accumulated benefit obligation	11	17
Fair value of plan assets	0	0
Unfunded Plans [Member] | Foreign Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	69	57
Accumulated benefit obligation	69	57
Fair value of plan assets	$ 0	$ 0