PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Change in Projected Benefit Obligations, Plan Assets and Funded Status of All Significant Plans) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost	$ 59	$ 49	$ 62
Defined Benefit Plan, Amortization of Net Gains (Losses)	(66)
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)	6
Defined Benefit Plan, Change in Benefit Obligations [Roll Forward]
Benefit Obligations, Beginning Balance	4,433	4,037
Service cost	31	28	25
Interest cost	165	189	200
Actuarial changes in assumptions and experience	(342)	472
Benefits paid	(285)	(286)
Other	(7)	(7)
Benefit Obligations, Ending Balance	3,995	4,433	4,037
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets, Beginning	3,548	3,351
Actual return on plan assets	174	331
Employer contributions	158	158
Asset transfer	(9)	(6)
Benefits Paid	(285)	(286)
Fair Value of Plan Assets, Ending	3,586	3,548	3,351
Funded status at end of year	(409)	(885)
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Current liabilities	(1)	(1)
Noncurrent liabilities	(408)	(884)
Net amounts recognized in the consolidated balance sheets	(409)	(885)
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax [Abstract]
Net loss (gain)	1,570	1,941
Prior service cost (credit)	26	33
Pretax balance in AOCI at end of year	1,596	1,974
Employer Group Waiver Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Prescription Drug Benefit, Reduction in Accumulated Postretirement Benefit Obligation for Subsidy	(55)
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost	15	17	19
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)	(10)
Defined Benefit Plan, Change in Benefit Obligations [Roll Forward]
Benefit Obligations, Beginning Balance	414	412
Service cost	2	2	2
Interest cost	14	17	19
Actuarial changes in assumptions and experience	(102)	16
Benefits paid	(26)	(33)
Other	0	0
Benefit Obligations, Ending Balance	302	414	412
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets, Beginning	0	0
Actual return on plan assets	0	0
Employer contributions	0	0
Asset transfer	0	0
Benefits Paid	0	0
Fair Value of Plan Assets, Ending	0	0	0
Funded status at end of year	(302)	(414)
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Current liabilities	(33)	(36)
Noncurrent liabilities	(269)	(378)
Net amounts recognized in the consolidated balance sheets	(302)	(414)
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax [Abstract]
Net loss (gain)	(107)	(5)
Prior service cost (credit)	(1)	(2)
Pretax balance in AOCI at end of year	$ (108)	$ (7)