EQUITY - Reclassifications Out of Accumulated Other Comprehensive Loss (Details) $ in Millions	6 Months Ended
	Jun. 30, 2017 USD ($)
Stockholders' Equity Note [Abstract]
Actuarial loss and prior service cost	$ (94)	[1]
Tax benefit	30
Total, net of tax	(64)
Currency exchange contracts	(5)
Tax benefit	1
Total, net of tax	(4)
Total reclassifications for the period	$ (68)

[1] These components of Accumulated other comprehensive loss are included in the computation of net periodic benefit cost. See Note 6 for additional information about pension and other postretirement benefits items.