| **Redeemable Noncontrolling Interests**                    | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
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| **Redeemable Noncontrolling Interest Abstract [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| Redeemable Noncontolling Interests                         | Redeemable Noncontrolling InterestsRedeemable noncontrolling interests relate to two joint venture entities:•In the first quarter of 2013, we entered into an agreement to convert our 100% owned hospital in Jonesboro, Arkansas into a joint venture with St. Bernards Healthcare. Following the formation of the joint venture, our ownership percentage was reduced to approximately 56%. As part of this agreement, St. Bernards Healthcare received an option to increase its ownership percentage in the joint venture to 50%. In the fourth quarter of 2013, St. Bernards Healthcare exercised its option which reduced our ownership percentage to 50%. We remain the managing partner of this joint venture and continue to consolidate this entity. See also Note 6,Goodwill and Other Intangible Assets.•In 2009, we entered into an agreement to convert our 100% owned hospital in Altoona, Pennsylvania into a joint venture with Altoona Regional Health System. Following the formation of the joint venture, our ownership percentage was reduced to 55%. Historically, the noncontrolling interest related to this joint venture was included in Other long-term liabilities in our consolidated balance sheets. See Note 1, Summary of Significant Accounting Policies, “Reclassifications.”The following is a summary of the activity related to our Redeemable noncontrolling interests (in millions): For the Year Ended December 31, 2013 2012 2011Balance at beginning of period$7.2 $7.3 $7.2Net income attributable to noncontrolling interests5.8 3.8 3.6Distributions declared(4.9) (3.9) (3.5)Contribution to joint venture7.1 — —Change in fair value(1.7) — —Balance at end of period$13.5 $7.2 $7.3The following table reconciles the net income attributable to nonredeemable Noncontrolling interests, as recorded in the shareholders’ equity section of the consolidated balance sheets, and the net income attributable to Redeemable noncontrolling interests, as recorded in the mezzanine section of the consolidated balance sheets, to the Net income attributable to noncontrolling interests presented on the consolidated statements of operations (in millions): For the Year Ended December 31, 2013 2012 2011Net income attributable to nonredeemable noncontrolling interests$52.0 $47.1 $42.3Net income attributable to redeemable noncontrolling interests5.8 3.8 3.6Net income attributable to noncontrolling interests$57.8 $50.9 $45.9 |

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| - Definition
The entire disclosure for redeemable noncontrolling interest in consolidated subsidiaries.
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No definition available.
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