Restructuring and Impairment - Schedule of Changes in Restructuring Program Liabilities (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	$ 45	$ 20	$ 58	$ 28
Additions	22	17	39	21
Payments	(28)	(5)	(54)	(17)
Other	0	(3)	(4)	(3)
Restructuring Liabilities, Ending Balance	39	29	39	29
One Time Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	34	14	47	21
Additions	21	10	38	14
Payments	(28)	(5)	(54)	(16)
Other	0	(2)	(4)	(2)
Restructuring Liabilities, Ending Balance	27	17	27	17
Facility Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	5	6	5	7
Additions	1	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	0	6	0
Additions	0	7	0	7
Payments	0	0	0	0
Other	0	(1)	0	(1)
Restructuring Liabilities, Ending Balance	$ 6	$ 6	$ 6	$ 6