EARNINGS (LOSS) PER COMMON SHARE (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions |
3 Months Ended |
Mar. 31, 2018 |
Mar. 31, 2017 |
| Net Income Available (Loss Attributable) to Common Shareholders (Numerator) |
|
|
| Net income (loss) available to Tenet Healthcare Corporation common shareholders for basic loss per share |
$ 98
|
$ (52)
|
| Effect of dilutive stock options, restricted stock units and deferred compensation units |
0
|
0
|
| Net income (loss) available to Tenet Healthcare Corporation common shareholders for diluted loss per share |
$ 98
|
$ (52)
|
| Weighted Average Shares (Denominator) |
|
|
| Net income (loss) attributable to Tenet Healthcare Corporation common shareholders for basic loss per share (in shares) |
101,392
|
100,000
|
| Effect of dilutive stock options, restricted stock units and deferred compensation units (in shares) |
1,264
|
0
|
| Net income (loss) attributable to Tenet Healthcare Corporation common shareholders for diluted loss per share (in shares) |
102,656
|
100,000
|
| Per-Share Amount |
|
|
| Net income (loss) attributable to Tenet Healthcare Corporation common shareholders for basic loss per share (in dollars per share) |
$ 0.97
|
$ (0.52)
|
| Effect of dilutive stock options, restricted stock units and deferred compensation units (in dollars per share) |
(0.02)
|
0.00
|
| Net income (loss) attributable to Tenet Healthcare Corporation common shareholders for diluted loss per share (in dollars per share) |
$ 0.95
|
$ (0.52)
|