Restructuring Charges - Schedule of Changes in Restructuring Program Liabilities (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	$ 39	$ 29	$ 58	$ 28
Additions	24	10	63	31
Payments	(17)	(11)	(71)	(28)
Other	0	0	(4)	(3)
Restructuring Liabilities, Ending Balance	46	28	46	28
One Time Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	27	17	47	21
Additions	24	10	62	24
Payments	(17)	(11)	(71)	(27)
Other	0	0	(4)	(2)
Restructuring Liabilities, Ending Balance	34	16	34	16
Facility Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	6	6	5	7
Additions	0	0	1	0
Payments	0	0	0	(1)
Other	0	0	0	0
Restructuring Liabilities, Ending Balance	6	6	6	6
Other Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	6	6	6	0
Additions	0	0	0	7
Payments	0	0	0	0
Other	0	0	0	(1)
Restructuring Liabilities, Ending Balance	$ 6	$ 6	$ 6	$ 6