Condensed Consolidated Income Statements - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Revenues	$ 13,311	$ 12,694	$ 37,240	$ 37,813
Salaries and benefits	6,097	5,971	17,545	17,455
Supplies	2,128	2,090	5,999	6,249
Other operating expenses	2,251	2,352	6,825	7,013
Government stimulus income reversal	822		0
Equity in earnings of affiliates	(40)	(4)	(48)	(23)
Depreciation and amortization	694	647	2,059	1,902
Interest expense	385	448	1,201	1,386
Losses (gains) on sales of facilities	(14)	0	6	(17)
Losses on retirement of debt	0	211	295	211
Total expenses including equity in earnings of affiliates	12,323	11,715	33,882	34,176
Income before income taxes	988	979	3,358	3,637
Provision for income taxes	209	215	665	765
Net income	779	764	2,693	2,872
Net income attributable to noncontrolling interests	111	152	365	438
Net income attributable to HCA Healthcare, Inc.	$ 668	$ 612	$ 2,328	$ 2,434
Per share data:
Basic earnings	$ 1.97	$ 1.80	$ 6.89	$ 7.12
Diluted earnings	$ 1.95	$ 1.76	$ 6.79	$ 6.98
Shares used in earnings per share calculations (in millions):
Basic	338,168	340,789	338,057	341,932
Diluted	343,346	347,487	343,014	348,712