Restructuring and Employee Severance Narative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring Costs			$ 64
Employee-related costs	$ 42	$ 12	62	$ 41
Facility Exit and Other Costs	14	0	24	3
Enterprise Wide Cost Saving Measures [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	$ 42	$ 8	$ 62	$ 34