Restructuring and Employee Severance (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014	Jun. 30, 2013
Restructuring Cost and Reserve [Line Items]
Loss on disposal of held for sale assets	$ 1	$ 0	$ 19	$ (10)
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