Supplemental Condensed Consolidating Financial Information and Other Collateral-Related Information - Schedule of Consolidated Statements of Stockholder's Deficit (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based benefit plans	$ 169	$ 35	$ 43
Reclassification of certain equity securities with contingent redemption rights		141
Other	(28)	(56)	(163)
Healthtrust, Inc. [Member]
Share-based benefit plans	169	35	43
Reclassification of certain equity securities with contingent redemption rights		141
Other	(17)	36	120
Distributions from HCA Holdings, Inc., net of contributions to HCA Holdings, Inc.	$ 152	$ 212	$ 163