Condensed Financial Information of Parent Company - Condensed Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
ASSETS
Prepaid income taxes	$ 76	$ 99
Total current assets	3,208	3,082
Deferred income taxes	29	49
Other assets, net	2,053	2,007
Total assets	14,455	14,669
LIABILITIES AND STOCKHOLDERS’ DEFICIT
Other long-term liabilities	739	644
Deferred income taxes	369	354
Total liabilities	15,279	15,403
Community Health Systems, Inc. stockholders’ deficit:
Common stock	1	1
Additional paid-in capital	2,185	2,084
Accumulated other comprehensive loss	(14)	(21)	$ (14)
Accumulated deficit	(3,564)	(3,431)
Total Community Health Systems, Inc. stockholders’ deficit	(1,392)	(1,367)
Total liabilities and stockholders’ deficit	14,455	14,669
Parent Company
ASSETS
Prepaid income taxes	77	99
Total current assets	77	99
Deferred income taxes	29	49
Total assets	106	148
LIABILITIES AND STOCKHOLDERS’ DEFICIT
Other long-term liabilities	46	2
Deferred income taxes	369	354
Total liabilities	1,498	1,515
Community Health Systems, Inc. stockholders’ deficit:
Common stock	1	1
Additional paid-in capital	2,185	2,084
Accumulated other comprehensive loss	(14)	(21)
Accumulated deficit	(3,564)	(3,431)
Total Community Health Systems, Inc. stockholders’ deficit	(1,392)	(1,367)
Total liabilities and stockholders’ deficit	106	148
Parent Company | Affiliated Entity
LIABILITIES AND STOCKHOLDERS’ DEFICIT
Other long-term liabilities	$ 1,083	$ 1,159