CONSOLIDATED COMPREHENSIVE INCOME STATEMENTS (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net income	$ 2,006	$ 2,842	$ 1,573
Other comprehensive income (loss) before taxes:
Foreign currency translation	37	(9)	(25)
Unrealized gains on available-for-sale securities	6	2	2
Less: gains included in other operating expenses			(13)
Total unrealized gains (losses) on available-for-sale securities	6	2	(11)
Defined benefit plans	(89)	(67)	(76)
Less: pension costs included in salaries and benefits	46	25	18
Total defined benefit plans	(43)	(42)	(58)
Change in fair value of derivative financial instruments	(151)	(311)	(255)
Less: interest costs included in interest expense	122	341	384
Total change in fair value of derivative financial instruments	(29)	30	129
Other comprehensive income (loss) before taxes	(29)	(19)	35
Income taxes (benefits) related to other comprehensive income items	(12)	(7)	13
Other comprehensive income (loss)	(17)	(12)	22
Comprehensive income	1,989	2,830	1,595
Comprehensive income attributable to noncontrolling interests	401	377	366
Comprehensive income attributable to HCA Holdings, Inc.	$ 1,588	$ 2,453	$ 1,229