Restructuring and Employee Severance (Activity Related to Restructuring and Employee Severance Costs) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Mar. 31, 2015		Mar. 31, 2014		Mar. 31, 2015		Mar. 31, 2014
Restructuring Cost and Reserve [Line Items]
Employee-related costs	$ 3	[1]	$ 2	[1]	$ 24	[1]	$ 10	[1]
Facility exit and other costs	4	[2]	3	[2]	9	[2]	15	[2]
Total restructuring and employee severance	$ 7		$ 5		$ 33		$ 25

[1] Employee-related costs primarily consist of termination benefits provided to employees who have been involuntarily terminated and duplicate payroll costs during transition periods.

[2] Facility exit and other costs primarily consist of lease termination costs, accelerated depreciation, equipment relocation costs, project consulting fees and costs associated with restructuring our delivery of information technology infrastructure services.