CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net operating revenues:
Net operating revenues before provision for doubtful accounts	$ 2,594	$ 2,491
Less: Provision for doubtful accounts	207	189
Net operating revenues	2,387	2,302
Operating expenses:
Salaries, wages and benefits	1,161	1,062
Supplies	384	399
Other operating expenses, net	568	531
Depreciation and amortization	114	100
Impairment and restructuring charges, and acquisition-related costs	14	3
Litigation and investigation costs	0	2
Operating income	146	205
Interest expense	(103)	(98)
Loss from early extinguishment of debt	(177)	0
Investment earnings	0	1
Income (loss) from continuing operations, before income taxes	(134)	108
Income tax benefit (expense)	53	(42)
Income (loss) from continuing operations, before discontinued operations	(81)	66
Discontinued operations:
Income (loss) from operations	(3)	2
Income tax benefit (expense)	1	(1)
Income (loss) from discontinued operations	(2)	1
Net income (loss)	(83)	67
Less: Preferred stock dividends	0	6
Less: Net income attributable to noncontrolling interests	5	3
Net income (loss) attributable to Tenet Healthcare Corporation common shareholders	(88)	58
Amounts attributable to Tenet Healthcare Corporation common shareholders
Income (loss) from continuing operations, net of tax	(86)	57
Income (loss) from discontinued operations, net of tax	(2)	1
Net income (loss) attributable to Tenet Healthcare Corporation common shareholders	$ (88)	$ 58
Basic
Continuing operations (in dollars per share)	$ (0.83)	$ 0.55
Discontinued operations (in dollars per share)	$ (0.02)	$ 0.01
Total earnings (loss) per share, Basic (in dollars per share)	$ (0.85)	$ 0.56
Diluted
Continuing operations (in dollars per share)	$ (0.83)	$ 0.52
Discontinued operations (in dollars per share)	$ (0.02)	$ 0.01
Total earnings (loss) per share, Diluted (in dollars per share)	$ (0.85)	$ 0.53
Weighted average shares and dilutive securities outstanding (in thousands):
Basic (in shares)	104,103	102,843
Diluted (in shares)	104,103	121,218