Spin-Off of Quorum Health Corporation (Narrative) (Details) $ in Millions	12 Months Ended
Dec. 31, 2016 USD ($)	Apr. 29, 2016 item
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncash Dividend \| $	$ 713
Quorum Health Corporation [Member] \| Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Spinoff [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of hospitals owned and leased by the Company \| item		38

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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