PENSION AND POSTRETIREMENT BENEFIT PLANS (Actuarial Assumptions) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Pension, Postretirement And Postemployment Liabilities Statement [Line Items]
Historical long-term annualized returns for U.S. pension plans, 10 years	5.60%	4.70%	3.60%
Historical long-term annualized returns for U.S. pension plans, 15 years	7.00%	7.90%	8.40%
Historical long-term annualized returns for U.S. pension plans, 20 years	8.10%	9.30%	8.40%
The increase in pension and postretirement liabilities as a result of lower than expected return on plan assets and actuarial losses attributed to the benefit obligation	$ 1,300
The increase in pension and postretirement liabilities as a result of lower than expected return on plan assets	414
The increase in pension and postretirement liabilities as a result of actuarial losses attributed to the benefit obligation	882
The amount by which the fair value of plan assets exceeds the market-related value as of the balance sheet date	313
The amount by which the market-related value of defined benefit plan assets exceeds the fair value as of the balance sheet date. The market-related value is a calculated value of assets used in determining the expected return on defined benefit plan assets.	151
Percentage of the higher of the market-related value or projected benefit obligation corridor not amortized	10.00%
Portion of actuarial gains/losses not expected to be amortized during next year	900
Healthcare cost trend rate assumed for next year	7.40%	7.90%	8.40%
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)	4.50%	4.50%	4.50%
Effect of one percentage point increase on service and interest cost	1
Effect of one percentage point decrease on service and interest cost	(1)
Effect of one percentage point increase on accumulated postretirement benefit obligation	15
Effect of one percentage point decrease on accumulated postretirement benefit obligation	$ (11)
Pension Benefits [Member]
Pension, Postretirement And Postemployment Liabilities Statement [Line Items]
Discount rate used to determine benefit obligations	4.40%	5.20%
Rate of compensation increase used to determine benefit obligations	2.30%	2.40%
Discount rate used to determine net periodic benefit cost	5.20%	5.60%	6.90%
Expected long-term return on plan assets used to determine net periodic benefit cost	8.30%	8.30%	8.20%
Rate of compensation increase used to determine net periodic benefit cost	2.40%	3.70%	3.60%
Other Benefits [Member]
Pension, Postretirement And Postemployment Liabilities Statement [Line Items]
Discount rate used to determine benefit obligations	4.10%	4.80%
Rate of compensation increase used to determine benefit obligations	2.00%	2.00%
Discount rate used to determine net periodic benefit cost	4.80%	5.50%	7.00%
Expected long-term return on plan assets used to determine net periodic benefit cost	8.80%	8.80%	8.80%
Rate of compensation increase used to determine net periodic benefit cost	2.00%	3.50%	3.50%