Condensed Consolidated Statements of Comprehensive (Loss) Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Condensed Consolidated Statements of Comprehensive (Loss) Income [Abstract]
Net (loss) income	$ (98)	$ 96
Other comprehensive income, net of income taxes:
Net change in fair value of interest rate swaps, net of tax	9	16
Net change in fair value of available-for-sale securities, net of tax		2
Amortization and recognition of unrecognized pension cost components, net of tax		1
Other comprehensive income	9	19
Comprehensive (loss) income	(89)	115
Less: Comprehensive income attributable to noncontrolling interests	14	17
Comprehensive (loss) income attributable to Community Health Systems, Inc. shockholders	$ (103)	$ 98

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Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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