CLAIMS AND LAWSUITS - Reconciliations (Details) - USD ($)
$ in Millions |
3 Months Ended |
Mar. 31, 2018 |
Mar. 31, 2017 |
| Loss Contingency Accrual [Roll Forward] |
|
|
| Litigation and Investigation Costs |
$ 6
|
$ 5
|
| Claims, lawsuits, and regulatory proceedings |
|
|
| Loss Contingency Accrual [Roll Forward] |
|
|
| Litigation reserve, balance at beginning of period |
12
|
12
|
| Litigation and Investigation Costs |
6
|
5
|
| Cash Payments |
(7)
|
0
|
| Litigation reserve, balance at end of period |
11
|
17
|
| Claims, lawsuits, and regulatory proceedings | Continuing operations |
|
|
| Loss Contingency Accrual [Roll Forward] |
|
|
| Litigation reserve, balance at beginning of period |
12
|
12
|
| Litigation and Investigation Costs |
6
|
5
|
| Cash Payments |
(7)
|
0
|
| Litigation reserve, balance at end of period |
11
|
17
|
| Claims, lawsuits, and regulatory proceedings | Discontinued operations |
|
|
| Loss Contingency Accrual [Roll Forward] |
|
|
| Litigation reserve, balance at beginning of period |
0
|
0
|
| Litigation and Investigation Costs |
0
|
0
|
| Cash Payments |
0
|
0
|
| Litigation reserve, balance at end of period |
$ 0
|
$ 0
|