Impairment and Restructuring Charges - Schedule of Changes in Restructuring Program Liabilities (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	$ 25	$ 33	$ 40	$ 42
Additions	19	25	53	62
Payments	(17)	(18)	(64)	(63)
Other			(2)	(1)
Restructuring Liabilities, Ending Balance	27	40	27	40
One Time Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	16	20	28	29
Additions	19	25	53	62
Payments	(17)	(17)	(63)	(61)
Other			0	(2)
Restructuring Liabilities, Ending Balance	18	28	18	28
Facility Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	0	2	2	2
Additions	0	0	0	0
Payments	0	0	0	0
Other			(2)	0
Restructuring Liabilities, Ending Balance	0	2	0	2
Other Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Liabilities, Beginning Balance	9	11	10	11
Additions	0	0	0	0
Payments	0	(1)	(1)	(2)
Other			0	1
Restructuring Liabilities, Ending Balance	$ 9	$ 10	$ 9	$ 10