OTHER COMPREHENSIVE INCOME Schedule of Reclassifications Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax (expense)/benefit		$ (83)	$ (136)	$ (302)	$ (122)
Earnings (Loss) From Continuing Operations		562	366	1,354	642
Total reclassifications for the period		(78)	(56)	(231)	(169)
Prior-service costs
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	[1]	(4)	(6)	(11)	(19)
Actuarial gains (losses)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	[1]	(97)	(89)	(291)	(266)
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		(101)	(95)	(302)	(285)
Tax (expense)/benefit		25	36	75	109
Earnings (Loss) From Continuing Operations		(76)	(59)	(227)	(176)
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	[2]	0	1	(2)	1
Tax (expense)/benefit		0	0	0	0
Earnings (Loss) From Continuing Operations		0	1	(2)	1
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		(3)	3	(3)	8
Tax (expense)/benefit		1	(1)	1	(2)
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest | Foreign Exchange Contract
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	[3]	(3)	3	(3)	8
Net Gains and Losses on Cash Flow Hedging Derivatives (a)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Earnings (Loss) From Continuing Operations		(2)	2	(2)	6
Total reclassifications for the period		$ (2)	$ 2	$ (2)	$ 6

[1] These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 18 for additional details).

[2] Amounts for the three and nine months ended September 30, 2017 were reclassed to Net (gains) losses on sales and impairment of businesses.

[3] This accumulated other comprehensive income component is included in our derivatives and hedging activities (see Note 17 for additional details).