CONDENSED CONSOLIDATED INCOME STATEMENTS (Unaudited) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]
Revenues before provision for doubtful accounts	$ 9,958	$ 9,473			$ 19,641	$ 18,667
Provision for doubtful accounts	728	1,023			1,579	1,777
Revenues	9,230	8,450			18,062	16,890
Salaries and benefits	4,098	3,848			8,148	7,765
Supplies	1,532	1,470			3,064	2,949
Other operating expenses	1,644	1,507			3,289	3,030
Electronic health record incentive income	(35)	(52)			(65)	(91)
Equity in earnings of affiliates	(9)	(12)			(18)	(20)
Depreciation and amortization	454	425			901	849
Interest expense	427	462			887	934
Losses (gains) on sales of facilities	(11)	(4)			(32)	12
Losses on retirement of debt	226		17		226	17
Legal claim costs				175	78
Total expenses including equity in earnings of affiliates	8,326	7,644			16,478	15,445
Income before income taxes	904	806			1,584	1,445
Provision for income taxes	272	269			498	470
Net income	632	537			1,086	975
Net income attributable to noncontrolling interests	149	114			256	208
Net income attributable to HCA Holdings, Inc.	$ 483	$ 423			$ 830	$ 767
Per share data:
Basic earnings per share	$ 1.10	$ 0.95			$ 1.88	$ 1.72
Diluted earnings per share	$ 1.07	$ 0.91			$ 1.82	$ 1.66
Shares used in earnings per share calculations (in thousands):
Basic	438,833	446,612			440,482	445,513
Diluted	453,009	463,184			455,220	462,782