Restructuring Charges - Schedule of Changes in Restructuring Program Liabilities (Detail) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	$ 49	$ 44
Additions	15	20
Payments	(23)	(22)
Other	(1)	(1)
Restructuring Liabilities, Ending Balance	40	41
One Time Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	33	33
Additions	15	20
Payments	(23)	(22)
Other	0	(1)
Restructuring Liabilities, Ending Balance	25	30
Facility Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	6	5
Additions	0	0
Payments	0	0
Other	(1)	0
Restructuring Liabilities, Ending Balance	5	5
Other Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	10	6
Additions	0	0
Payments	0	0
Other	0	0
Restructuring Liabilities, Ending Balance	$ 10	$ 6