PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Changes in Projected Benefit Obligations (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Pension
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation, beginning	$ 5,267	$ 4,759
Service cost	48	44	56
Interest cost	276	278	275
Plan participants' contributions	0	0
Actuarial (gains) losses	611	458
Foreign currency exchange rate changes	(15)	44
Benefits paid (includes lum sum settlements)	(338)	(332)
Plan amendments	(14)	9
Special termination benefits	6	5
Plan assumptions in connedtion with acquisition	0	2
Projected benefit obligation, ending	5,841	5,267	4,759
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation, beginning	496	591
Service cost	2	2	2
Interest cost	24	24	38
Plan participants' contributions	19	26
Actuarial (gains) losses	29	(78)
Foreign currency exchange rate changes	(1)	4
Benefits paid (includes lum sum settlements)	(59)	(73)
Plan amendments	(108)	(3)
Special termination benefits	0	0
Plan assumptions in connedtion with acquisition	0	3
Projected benefit obligation, ending	$ 402	$ 496	$ 591

The net increase or decrease of changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan.

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1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

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The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

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The amount of increase in the benefit obligation attributed to business combinations.

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The amount of contributions made by plan participants. This item represents a periodic increase to the plan obligation and an increase to plan assets.

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If applicable, the cost of providing special or contractual termination benefits recognized during the period on the projected benefit obligation.

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The amount of increase or decrease in the benefit obligation attributed to foreign currency changes. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency.

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The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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The amount of increase or decrease due to a change in the terms of an existing plan or the initiation of a new plan. A plan amendment may increase or decrease benefits, including those attributed to years of service already rendered.

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The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

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