Restructuring and Employee Severance (Liabilities Associated with Restructuring and Employee Severance Activities) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2012
Restructuring Reserve [Roll Forward]
Balance at June 30, 2012	$ 18
Additions to restructuring and employee severance liability	7
Payments and other adjustments to restructuring and employee severance liability	(6)
Balance at September 30, 2012	19
Employee-Related Costs
Restructuring Reserve [Roll Forward]
Balance at June 30, 2012	16
Additions to restructuring and employee severance liability	7
Payments and other adjustments to restructuring and employee severance liability	(6)
Balance at September 30, 2012	17
Facility Exit and Other Costs
Restructuring Reserve [Roll Forward]
Balance at June 30, 2012	2
Additions to restructuring and employee severance liability	0
Payments and other adjustments to restructuring and employee severance liability	0
Balance at September 30, 2012	$ 2