GOODWILL AND OTHER INTANGIBLE ASSETS - Changes in Carrying Amount of Goodwill by Reportable Segments (Detail) $ in Millions |
9 Months Ended |
|---|---|
|
Sep. 30, 2016
USD ($)
| |
| Goodwill [Roll Forward] | |
| Balance at January 1, 2016 | $ 3,265 |
| Acquisitions | 7 |
| Balance at September 30, 2016 | 3,272 |
| Retail | |
| Goodwill [Roll Forward] | |
| Balance at January 1, 2016 | 1,069 |
| Acquisitions | 0 |
| Balance at September 30, 2016 | 1,069 |
| Group | |
| Goodwill [Roll Forward] | |
| Balance at January 1, 2016 | 385 |
| Acquisitions | 0 |
| Balance at September 30, 2016 | 385 |
| Healthcare Services | |
| Goodwill [Roll Forward] | |
| Balance at January 1, 2016 | 1,811 |
| Acquisitions | 7 |
| Balance at September 30, 2016 | $ 1,818 |