Condensed Consolidated Income Statements (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Statement [Abstract]
Revenues before provision for doubtful accounts	$ 9,411	$ 8,893	$ 28,078	$ 27,245
Provision for doubtful accounts	955	831	2,732	2,666
Revenues	8,456	8,062	25,346	24,579
Salaries and benefits	3,916	3,781	11,681	11,224
Supplies	1,457	1,375	4,406	4,216
Other operating expenses	1,564	1,510	4,594	4,496
Electronic health record incentive income	(75)	(131)	(166)	(256)
Equity in earnings of affiliates	(9)	(6)	(29)	(26)
Depreciation and amortization	443	417	1,292	1,254
Interest expense	458	446	1,392	1,336
Losses (gains) on sales of facilities	1	(7)	13	(4)
Loss on retirement of debt			17
Total expenses including equity in earnings of a affiliates	7,755	7,385	23,200	22,240
Income before income taxes	701	677	2,146	2,339
Provision for income taxes	234	222	704	760
Net income	467	455	1,442	1,579
Net income attributable to noncontrolling interests	102	95	310	288
Net income attributable to HCA Holdings, Inc.	$ 365	$ 360	$ 1,132	$ 1,291
Per share data:
Basic earnings per share	$ 0.82	$ 0.82	$ 2.54	$ 2.94
Diluted earnings per share	$ 0.79	$ 0.78	$ 2.44	$ 2.81
Cash dividends declared per share				$ 2.00
Shares used in earnings per share calculations (in thousands):
Basic	447,329	440,899	446,125	439,441
Diluted	463,569	459,515	463,051	458,822