Retirement Benefit Obligations - Schedule of Change in Projected Benefit Obligation, Change in Fair Value of Plan Assets and Funded Status (Detail) - USD ($) $ in Millions		12 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation, beginning of the year		$ 1,787	$ 1,752
Service cost		10	12	$ 17
Interest cost		66	72	74
Benefits paid		(81)	(83)
Settlements	[1]	(44)	(9)
Actuarial loss/(gain)	[2]	179	82
Foreign exchange rate changes		(190)	(123)
Plan curtailments		(4)	0
Amendments, transfers and other	[3]	0	84
Projected benefit obligation, end of the year		1,723	1,787	1,752
Beginning balance		1,506	1,535
Actual return on plan assets		121	96
Employer contributions		26	9
Benefits paid		(73)	(74)
Settlements	[1]	(44)	(9)
Foreign exchange rate changes		(169)	(120)
Amendments, transfers and other	[3]	0	69
Ending balance		1,367	1,506	1,535
Funded status		(356)	(281)
Domestic Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation, beginning of the year		382	350
Service cost		0	1	4
Interest cost		17	17	16
Benefits paid		(18)	(16)
Settlements	[1]	(11)	(9)
Actuarial loss/(gain)	[2]	28	10
Foreign exchange rate changes		0	0
Plan curtailments		(2)	0
Amendments, transfers and other	[3]	0	29
Projected benefit obligation, end of the year		396	382	350
Beginning balance		302	301
Actual return on plan assets		14	5
Employer contributions		0	0
Benefits paid		(18)	(16)
Settlements	[1]	(11)	(9)
Foreign exchange rate changes		0	0
Amendments, transfers and other	[3]	0	21
Ending balance		287	302	301
Funded status		(109)	(80)
Foreign Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation, beginning of the year		1,272	1,252
Service cost		10	11	12
Interest cost		44	49	51
Benefits paid		(55)	(58)
Settlements	[1]	(33)	0
Actuarial loss/(gain)	[2]	153	85
Foreign exchange rate changes		(188)	(122)
Plan curtailments		(2)	0
Amendments, transfers and other	[3]	0	55
Projected benefit obligation, end of the year		1,201	1,272	1,252
Beginning balance		1,204	1,234
Actual return on plan assets		107	91
Employer contributions		26	9
Benefits paid		(55)	(58)
Settlements	[1]	(33)	0
Foreign exchange rate changes		(169)	(120)
Amendments, transfers and other	[3]	0	48
Ending balance		1,080	1,204	1,234
Funded status		(121)	(68)
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation, beginning of the year		133	150
Service cost		0	0	1
Interest cost		5	6	7
Benefits paid		(8)	(9)
Settlements	[1]	0	0
Actuarial loss/(gain)	[2]	(2)	(13)
Foreign exchange rate changes		(2)	(1)
Plan curtailments		0	0
Amendments, transfers and other	[3]	0	0
Projected benefit obligation, end of the year		126	133	150
Beginning balance		0	0
Actual return on plan assets		0	0
Employer contributions		0	0
Benefits paid		0	0
Settlements	[1]	0	0
Foreign exchange rate changes		0	0
Amendments, transfers and other	[3]	0	0
Ending balance		0	0	$ 0
Funded status		$ (126)	$ (133)

[1] Amounts related to payments made to former employees of the Company in full settlement of their deferred pension benefits.

[2] Fiscal 2016 actuarial losses for the Company's pension plans are primarily related to the reduction in discount rates used in measuring plan obligations as of June 30, 2016. Fiscal 2016 actuarial gains related to postretirement benefits primarily relate to favorable changes in plan demographics. Fiscal 2015 actuarial losses for domestic pension plans are primarily related to the strengthening of the mortality tables utilized in measuring plan obligations as of June 30, 2015. Fiscal 2015 actuarial losses for foreign pension plans are primarily related to changes in the discount rate utilized in measuring the plan obligations as of June 30, 2015. Fiscal 2015 actuarial gains related to postretirement benefits primarily relate to changes in plan demographics.

[3] For fiscal 2015, the increase in the Company's pension benefit obligation and plan assets relates to the acquisition of Harlequin and the assumption of Harlequin's defined benefit pension plans which resulted in an increase in the Company's net pension liability of approximately $15 million.