Stockholders' Equity (Schedule of Impact of Noncontrolling Interest to Stockholders' Equity) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Stockholders' Equity [Abstract]
Net (loss) income attributable to Community Health Systems, Inc. stockholders	$ (1,432)	$ 111	$ (1,421)	$ 189
Net decrease in Community Health Systems, Inc. paid-in capital for purchase of subsidiary partnership interests			(2)
Net transfers to the noncontrolling interests			(2)
Change to Community Health Systems, Inc. stockholders' equity from net income attributable to Community Health Systems, Inc. stockholders and transfers to noncontrolling interests			$ (1,423)