Impairment and Restructuring Charges - Schedule of Changes in Restructuring Program Liabilities (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	$ 41	$ 45	$ 44	$ 58
Additions	47	22	67	39
Payments	(36)	(28)	(58)	(54)
Other	0	0	(1)	(4)
Restructuring Liabilities, Ending Balance	52	39	52	39
One Time Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	30	34	33	47
Additions	47	21	67	38
Payments	(36)	(28)	(58)	(54)
Other	0	0	(1)	(4)
Restructuring Liabilities, Ending Balance	41	27	41	27
Facility Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	5	5	5	5
Additions	0	1	0	1
Payments	0	0	0	0
Other	0	0	0	0
Restructuring Liabilities, Ending Balance	5	6	5	6
Other Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	6	6	6	6
Additions	0	0	0	0
Payments	0	0	0	0
Other	0	0	0	0
Restructuring Liabilities, Ending Balance	$ 6	$ 6	$ 6	$ 6