Business Combinations (Acquisition of The Detroit Medical Center) (Details) (USD $) In Millions, unless otherwise specified			12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 DMC [Member]	Jan. 02, 2011 DMC [Member] Hospitals	Jan. 02, 2011 Initial estimate [Member] DMC [Member]	Jan. 02, 2011 Revised estimate [Member] DMC [Member]
Business Acquisition [Line Items]
Number of acute care and specialty hospitals and related healthcare facilities				8
Increase in goodwill acquired			$ 16.9
Increase in noncurrent deferred tax assets acquired			10.3
Business Acquisition, Purchase Price Allocation [Abstract]
Cash				6.4
Accounts receivable				115.1
Inventories				26.7
Prepaid expenses and other current assets				106.0
Property and equipment				524.6
Goodwill	789.9	768.4		118.6
Other intangible assets				10.7
Investments in securities				166.4
Other assets				95.5
Total assets acquired				1,170.0
Accounts payable				80.9
Other current liabilities				188.3
Pension benefit obligation				255.2	228.0	255.2
Other long-term liabilities				282.3
Total liabilities and non-controlling interests assumed				806.7
Net assets acquired				$ 363.3