Restructuring Programs - Schedule of Changes in Restructuring Program Liabilities (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Restructuring Reserve [Roll Forward]
Restructuring Liabilities, Beginning Balance	$ 64	$ 32	$ 73	$ 40
Additions	23	10	63	34
Payments	(24)	(18)	(72)	(47)
Other	3	1	2	(2)
Restructuring Liabilities, Ending Balance	66	25	66	25
One time employee termination benefits
Restructuring Reserve [Roll Forward]
Restructuring Liabilities, Beginning Balance	34	22	64	28
Additions	16	10	35	34
Payments	(21)	(17)	(69)	(46)
Other	3	1	2	0
Restructuring Liabilities, Ending Balance	32	16	32	16
Facility related costs
Restructuring Reserve [Roll Forward]
Restructuring Liabilities, Beginning Balance		0		2
Additions		0		0
Payments		0		0
Other		0		(2)
Restructuring Liabilities, Ending Balance		0		0
Other costs
Restructuring Reserve [Roll Forward]
Restructuring Liabilities, Beginning Balance	30	10	9	10
Additions	7	0	28	0
Payments	(3)	(1)	(3)	(1)
Other	0	0	0	0
Restructuring Liabilities, Ending Balance	$ 34	$ 9	$ 34	$ 9