Segment Information (Depreciation and Amortization Expense) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Depreciation and amortization expense	$ 325	$ 313	$ 254
Pharmaceutical
Depreciation and amortization expense	42	42	41
Medical
Depreciation and amortization expense	72	62	63
Corporate
Depreciation and amortization expense	$ 211	$ 209	$ 150