REDEEMABLE NONCONTROLLING INTERESTS IN EQUITY OF CONSOLIDATED SUBSIDIARIES - Segment Details (Details) - Redeemable noncontrolling interests - USD ($) $ in Millions |
3 Months Ended | |||
|---|---|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| REDEEMABLE NONCONTROLLING INTEREST | ||||
| Redeemable noncontrolling interests | $ 1,942 | $ 2,430 | $ 1,866 | $ 2,393 |
| Net income attributable to redeemable noncontrolling interests | 61 | 53 | ||
| Hospital Operations and other | ||||
| REDEEMABLE NONCONTROLLING INTEREST | ||||
| Redeemable noncontrolling interests | 526 | 519 | ||
| Net income attributable to redeemable noncontrolling interests | 6 | 4 | ||
| Ambulatory Care | ||||
| REDEEMABLE NONCONTROLLING INTEREST | ||||
| Redeemable noncontrolling interests | 1,186 | 1,137 | ||
| Net income attributable to redeemable noncontrolling interests | 35 | 35 | ||
| Conifer | ||||
| REDEEMABLE NONCONTROLLING INTEREST | ||||
| Redeemable noncontrolling interests | 230 | $ 210 | ||
| Net income attributable to redeemable noncontrolling interests | $ 20 | $ 14 | ||