Restructuring and Employee Severance (Activity Related to Restructuring and Employee Severance Costs) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Restructuring Charges [Abstract]
Employee-related costs	$ 2	$ 8	$ 10	$ 32
Facility Exit and Other Costs	5	12	15	25
Total restructuring and employee severance	$ 7	$ 20	$ 25	$ 57