Subsequent Events (Narrative) (Details)	Oct. 29, 2019 USD ($)	Jun. 22, 2018 USD ($)	Oct. 28, 2019 item	Oct. 01, 2019 item	Jan. 27, 2014 USD ($)
Subsequent Event [Member] | Petersburg, Virginia [Member] | Southside Regional Medical Center [Member]
Subsequent Event [Line Items]
Number of licensed beds | item			300
Subsequent Event [Member] | Franklin, Virginia [Member] | Southampton Memorial Hospital [Member]
Subsequent Event [Line Items]
Number of licensed beds | item			105
Subsequent Event [Member] | Emporia, Virginia [Member] | Southern Virginia Regional Medical Center [Member]
Subsequent Event [Line Items]
Number of licensed beds | item			80
Subsequent Event [Member] | Bluefield, West Virginia [Member] | Bluefield Regional Medical Center [Member]
Subsequent Event [Line Items]
Number of licensed beds | item				92
Senior Notes [Member] | Senior Notes at 6.875, Due 2022 [Member]
Subsequent Event [Line Items]
Extinguishment of debt amount		$ 368,000,000
Debt instrument aggregate principal amount					$ 3,000,000,000
Debt instrument stated interest rate					6.875%
Senior Notes [Member] | Subsequent Event [Member] | Senior Notes at 6.875, Due 2022 [Member]
Subsequent Event [Line Items]
Extinguishment of debt amount	$ 2,632,000,000
Secured Debt [Member] | Subsequent Event [Member] | Senior Notes at 8.000% Due 2027 [Member]
Subsequent Event [Line Items]
Debt instrument aggregate principal amount	$ 700,000,000
Debt instrument stated interest rate	8.00%
Unsecured Debt [Member] | Subsequent Event [Member] | Senior Notes at 6.875% Due 2028 [Member]
Subsequent Event [Line Items]
Debt instrument stated interest rate	6.875%
Unsecured Debt [Member] | Maximum [Member] | Subsequent Event [Member] | Senior Notes at 6.875% Due 2028 [Member]
Subsequent Event [Line Items]
Debt instrument aggregate principal amount	$ 1,932,000,000