Business and Basis of Presentation (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended			0 Months Ended
	Jun. 30, 2013 Hospitals Beds Centers	Jun. 30, 2012	Jun. 30, 2011	Jun. 24, 2013 Tenet Healthcare Corporation [Member]
Business and Presentation [Abstract]
Number of acute care hospitals owned and managed	28
Number of licensed beds	7,081
Number of surgery centers	2
Corporate office costs	$ 62.4	$ 67.8	$ 73.1
Merger, stock conversion price per share (dollars per share)				$ 21.00
Merger, transaction costs				$ 7.8