Impairment and Restructuring Charges - Schedule of Changes in Restructuring Program Liabilities (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	$ 33	$ 36	$ 42	$ 49
Additions	25	21	62	48
Payments	(18)	(22)	(63)	(62)
Other	0	3	(1)	3
Restructuring Liabilities, Ending Balance	40	38	40	38
One Time Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	20	22	29	33
Additions	25	21	62	47
Payments	(17)	(22)	(61)	(60)
Other	0	3	(2)	4
Restructuring Liabilities, Ending Balance	28	24	28	24
Facility Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	2	4	2	6
Additions	0	0	0	0
Payments	0	0	0	(1)
Other	0	0	0	(1)
Restructuring Liabilities, Ending Balance	2	4	2	4
Other Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	11	10	11	10
Additions	0	0	0	1
Payments	(1)	0	(2)	(1)
Other	0	0	1	0
Restructuring Liabilities, Ending Balance	$ 10	$ 10	$ 10	$ 10