PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Fair Value Measurement of Level 3 Pension Plan Assets) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Pension Plans [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets, beginning balance	$ 16,119	$ 15,851
Foreign currency impact	129	(121)
Fair value of plan assets, ending balance	17,725	16,119
Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets, beginning balance	2,486	2,117
Relating to assets sold	(62)	118
Relating to assets held	209	36
Purchase, sales and settlements	94	202
Transfers into (out of) Level 3, net	93	25
Foreign currency impact	8	(12)
Fair value of plan assets, ending balance	2,828	2,486
Equity Securities [Member] | Defined Benefit Pension Plans [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets, ending balance	7,146	6,181
Equity Securities [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets, beginning balance	16	0
Relating to assets sold	(5)	0
Relating to assets held	(3)	1
Purchase, sales and settlements	7	3
Transfers into (out of) Level 3, net	(2)	12
Foreign currency impact	0	0
Fair value of plan assets, ending balance	13	16
Company common stock [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets, ending balance	0
Fixed Income Securities [Member] | Defined Benefit Pension Plans [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets, ending balance	6,450	5,934
Fixed Income Securities [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets, beginning balance	100	50
Relating to assets sold	2	0
Relating to assets held	19	1
Purchase, sales and settlements	141	48
Transfers into (out of) Level 3, net	(4)	2
Foreign currency impact	0	(1)
Fair value of plan assets, ending balance	258	100
Alternative Investments [Member] | Defined Benefit Pension Plans [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets, ending balance	3,104	2,835
Alternative Investments [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets, beginning balance	2,328	2,027
Relating to assets sold	(59)	115
Relating to assets held	193	34
Purchase, sales and settlements	(54)	152
Transfers into (out of) Level 3, net	99	11
Foreign currency impact	8	(11)
Fair value of plan assets, ending balance	2,515	2,328
Other Investment Plan Assets [Member] | Defined Benefit Pension Plans [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets, ending balance	406	346
Other Investment Plan Assets [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets, beginning balance	42	40
Relating to assets sold	0	3
Relating to assets held	0	0
Purchase, sales and settlements	0	(1)
Transfers into (out of) Level 3, net	0	0
Foreign currency impact	0	0
Fair value of plan assets, ending balance	$ 42	$ 42