PENSION AND OTHER POSTRETIREMENT BENEFITS (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Pension And Other Postretirement Disclosure Paragraph Details [Abstract]
Cash contribution to pension plans	$ 256
United States, Defined Benefit [Member]
Defined Benefit Plans Disclosure [Line Items]
Service cost	64	63
Interest cost	184	190
Expected return on plan assets	(255)	(253)
Amortization of prior service cost (credit)	7	8
Settlements and curtailments		15
Net benefit cost	0	23
Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plans Disclosure [Line Items]
Service cost	12	15
Interest cost	55	60
Expected return on plan assets	(72)	(71)
Amortization of prior service cost (credit)		0
Recognition of actuarial losses		0
Settlements and curtailments	2	0
Net benefit cost	(3)	4
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plans Disclosure [Line Items]
Service cost		1
Interest cost	14	18
Amortization of prior service cost (credit)	(3)	(13)
Recognition of actuarial losses	11	12
Net benefit cost	$ 22	$ 18