Acquisitions (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		0 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Mar. 18, 2013 AssuraMed
Business Acquisition
Business Acquisition, Effective Date of Acquisition			Mar. 18, 2013
Payments to Acquire Businesses, Net of Cash Acquired	$ 25	$ 100	$ 2,070