RETIREMENT BENEFITS - Contributions (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
U.S. Pension Plans
Defined Benefit Plan, Estimated Future Employer Contributions [Abstract]
Total Company contributions	$ 22	$ 23
Estimated total company contributions	24	22
Non - U.S. Pension Plans
Defined Benefit Plan, Estimated Future Employer Contributions [Abstract]
Total Company contributions	29	87
Estimated total company contributions	33	95
U.S. Postretirement Benefit Plans
Defined Benefit Plan, Estimated Future Employer Contributions [Abstract]
Total Company contributions	32	20
Estimated total company contributions	33	29
Non-U.S. Postretirement Benefit Plans
Defined Benefit Plan, Estimated Future Employer Contributions [Abstract]
Total Company contributions	5	8
Estimated total company contributions	$ 4	$ 91