OTHER COMPREHENSIVE INCOME Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		3 Months Ended				6 Months Ended
		Jun. 30, 2016		Jun. 30, 2015		Jun. 30, 2016		Jun. 30, 2015		Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	[1]									$ (5,389)	$ (5,708)	$ (5,042)	$ (4,646)
Other comprehensive income (loss), before reclassifications, net of tax	[1]	$ (422)		$ 89		$ (165)		$ (389)
Reclassification from accumulated other comprehensive income, current period, net of tax	[1]	329		67		392		148
Other comprehensive income (loss), net of tax	[1]	(93)		156		227		(241)
Comprehensive (income) loss, net of tax, attributable to noncontrolling interest	[1]	1		0		0		1
Accumulated Other Comprehensive Income (Loss), Net of Tax		(5,481)	[1]	(4,886)	[1]	(5,481)	[1]	(4,886)	[1]		(5,708)
Accumulated Defined Benefit Pension Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	[1]									(3,088)	(3,169)	(3,056)	(3,134)
Other comprehensive income (loss), before reclassifications, net of tax	[1]	(545)		(2)		(528)		(2)
Reclassification from accumulated other comprehensive income, current period, net of tax	[1]	335		65		399		143
Other comprehensive income (loss), net of tax	[1]	(210)		63		(129)		141
Comprehensive (income) loss, net of tax, attributable to noncontrolling interest	[1]	0		0		0		0
Accumulated Other Comprehensive Income (Loss), Net of Tax	[1]	(3,298)		(2,993)		(3,298)		(2,993)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	[1]									(2,314)	(2,549)	(1,996)	(1,513)
Other comprehensive income (loss), before reclassifications, net of tax	[1]	137		91		373		(393)
Reclassification from accumulated other comprehensive income, current period, net of tax	[1]	(3)		0		(3)		0
Other comprehensive income (loss), net of tax	[1]	134		91		370		(393)
Comprehensive (income) loss, net of tax, attributable to noncontrolling interest	[1]	1		0		0		1
Accumulated Other Comprehensive Income (Loss), Net of Tax	[1]	(2,179)		(1,905)		(2,179)		(1,905)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	[1]									$ 13	$ 10	$ 10	$ 1
Other comprehensive income (loss), before reclassifications, net of tax	[1]	(14)		0		(10)		6
Reclassification from accumulated other comprehensive income, current period, net of tax	[1]	(3)		2		(4)		5
Other comprehensive income (loss), net of tax	[1]	(17)		2		(14)		11
Comprehensive (income) loss, net of tax, attributable to noncontrolling interest	[1]	0		0		0		0
Accumulated Other Comprehensive Income (Loss), Net of Tax	[1]	$ (4)		$ 12		$ (4)		$ 12

[1] All amounts are net of tax. Amounts in parentheses indicate debits to AOCI.