BENEFIT PLANS - Costs of Retirement Plans (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
|
| Compensation and Retirement Disclosure [Abstract] | ||
| Defined Contribution Plan, Cost Recognized | $ 11 | $ 8 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of the cost recognized during the period for defined contribution plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|