Retirement Benefit Obligations - Schedule of Assumptions Used (Detail)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Domestic Pension Benefits [Member]
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.50%	5.00%	4.30%
Rate of increase in future compensation		5.30%	3.30%
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	5.00%	4.30%	5.80%
Expected return on plan assets	7.00%	7.00%	7.00%
Rate of increase in future compensation	5.30%	5.30%	3.30%
Foreign Pension Benefits [Member]
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.20%	4.50%	4.50%
Rate of increase in future compensation	3.60%	3.70%	3.30%
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	4.50%	4.50%	5.70%
Expected return on plan assets	6.80%	6.70%	7.00%
Rate of increase in future compensation	3.70%	3.30%	3.80%
Postretirement Benefits [Member]
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.00%	4.70%	3.80%
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	4.70%	3.80%	5.30%