Impairments and (Gain)/Loss on Disposal of Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Long Lived Assets Held-for-sale [Line Items]
Goodwill impairment		$ 829	$ 829	$ 829
Fair Value, Inputs, Level 3
Long Lived Assets Held-for-sale [Line Items]
Fair value discount rate				10.00%
Medical | Waukegan, Illinois Property
Long Lived Assets Held-for-sale [Line Items]
Impairment of long-lived assets to be disposed of			8
Loss on disposal of assets held for sale	$ 1
Medical | Waukegan, Illinois Property | Level 2
Long Lived Assets Held-for-sale [Line Items]
Fair value of long-lived assets held for sale			$ 24
Medical | Gamma Sterilization
Long Lived Assets Held-for-sale [Line Items]
Impairment of long-lived assets to be disposed of				$ 11
Nuclear Pharmacy Services Division
Long Lived Assets Held-for-sale [Line Items]
Goodwill impairment				829
Goodwill impairment, net of tax				799
Software Development Costs - Pharmaceutical
Long Lived Assets Held-for-sale [Line Items]
Impairment of intangible assets				$ 8