Restructuring and Employee Severance (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2013
Restructuring Cost and Reserve [Line Items]
Loss on disposal of held for sale assets	$ 18	$ (9)	$ 18	$ (9)
Fiscal 2013 Medical Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Activities, Initiation Date					Jan. 30, 2013
Waukegan, Illinois Property [Member]
Restructuring Cost and Reserve [Line Items]
Loss on disposal of held for sale assets	$ 1