RETIREMENT BENEFITS (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
U.S. Pension Plans
Change in projected benefit obligation
Interest cost on benefit obligation	$ 140	$ 141	$ 398	$ 423
Change in plan assets
Company contributions			32	35
Net amount recognized
Benefit asset	271		271
Net amount recognized on the balance sheet	271		271
Amounts recognized in Accumulated other comprehensive income (loss)
Prior service benefit	(8)		(8)
Net actuarial loss (gain)	4,185		4,185
Net amount recognized in equity-pretax	4,177		4,177
Accumulated benefit obligation at period end	12,054		12,054
U.S. Pension Plans | Significant plans measured quarterly
Change in projected benefit obligation
Projected benefit obligation at beginning of period			12,198
Benefits earned during the period			1
Interest cost on benefit obligation			140
Actuarial (gain) loss			(109)
Benefits paid net participating contributions			(179)
Curtailment			19
Projected benefit obligation at end of period	12,070		12,070
Change in plan assets
Plan assets at fair value at beginning of period			12,551
Actual return on plan assets			(31)
Benefits paid			(179)
Plan assets at fair value at end of period	12,341		12,341
Funded status of significant plans at period end	271		271
Non - U.S. Pension Plans
Change in projected benefit obligation
Interest cost on benefit obligation	95	93	287	277
Change in plan assets
Company contributions			282	213
Net amount recognized
Benefit asset	529		529
Net amount recognized on the balance sheet	529		529
Amounts recognized in Accumulated other comprehensive income (loss)
Prior service benefit	(2)		(2)
Net actuarial loss (gain)	1,188		1,188
Net amount recognized in equity-pretax	1,186		1,186
Accumulated benefit obligation at period end	3,275		3,275
Non - U.S. Pension Plans | Significant plans measured quarterly
Change in projected benefit obligation
Projected benefit obligation at beginning of period			3,687
Benefits earned during the period			12
Interest cost on benefit obligation			57
Actuarial (gain) loss			(66)
Benefits paid net participating contributions			(44)
Foreign exchange impact and other			114
Projected benefit obligation at end of period	3,760		3,760
Change in plan assets
Plan assets at fair value at beginning of period			3,979
Actual return on plan assets			86
Company contributions			129
Benefits paid			(44)
Foreign exchange impact and other			139
Plan assets at fair value at end of period	4,289		4,289
Funded status of significant plans at period end	529		529
U.S. Postretirement Benefit Plans
Change in projected benefit obligation
Interest cost on benefit obligation	8	11	25	33
Change in plan assets
Company contributions			49	41
Net amount recognized
Benefit liability	(756)		(756)
Net amount recognized on the balance sheet	(756)		(756)
Amounts recognized in Accumulated other comprehensive income (loss)
Prior service benefit	(1)		(1)
Net actuarial loss (gain)	(114)		(114)
Net amount recognized in equity-pretax	(115)		(115)
U.S. Postretirement Benefit Plans | Significant plans measured quarterly
Change in projected benefit obligation
Projected benefit obligation at beginning of period			784
Interest cost on benefit obligation			9
Actuarial (gain) loss			25
Benefits paid net participating contributions			(23)
Projected benefit obligation at end of period	795		795
Change in plan assets
Plan assets at fair value at beginning of period			42
Company contributions			20
Benefits paid			(23)
Plan assets at fair value at end of period	39		39
Funded status of significant plans at period end	(756)		(756)
Non-U.S. Postretirement Benefit Plans
Change in projected benefit obligation
Interest cost on benefit obligation	31	29	107	87
Change in plan assets
Company contributions			244	4
Net amount recognized
Benefit asset	152		152
Net amount recognized on the balance sheet	152		152
Amounts recognized in Accumulated other comprehensive income (loss)
Prior service benefit	(3)		(3)
Net actuarial loss (gain)	530		530
Net amount recognized in equity-pretax	527		527
Non-U.S. Postretirement Benefit Plans | Significant plans measured quarterly
Change in projected benefit obligation
Projected benefit obligation at beginning of period			1,468
Benefits earned during the period			5
Interest cost on benefit obligation			26
Actuarial (gain) loss			(151)
Benefits paid net participating contributions			(13)
Foreign exchange impact and other			(15)
Projected benefit obligation at end of period	1,320		1,320
Change in plan assets
Plan assets at fair value at beginning of period			1,386
Actual return on plan assets			37
Company contributions			78
Benefits paid			(13)
Foreign exchange impact and other			(16)
Plan assets at fair value at end of period	1,472		1,472
Funded status of significant plans at period end	$ 152		$ 152