PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Net Periodic Benefit Cost and Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income for 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]
Service cost	$ 31	$ 28	$ 25
Interest cost	165	189	200
Expected return on plan assets	(232)	(235)	(255)
Amortization of prior service cost (credit)	7	7	7
Amortization of net loss	88	60	85
Net periodic benefit cost (credit)	59	49	62
Net (gain) loss	(283)	375	254
Amortization of prior service (cost) credit	(7)	(7)	(7)
Amortization of net loss	(88)	(60)	(85)
Total recognized in other comprehensive (income) loss	(378)	308	162
Total recognized in net periodic benefit cost and other comprehensive loss	(319)	357	224
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	2	2	2
Interest cost	14	17	19
Expected return on plan assets	0	0	0
Amortization of prior service cost (credit)	(1)	(2)	(2)
Amortization of net loss	0	0	0
Net periodic benefit cost (credit)	15	17	19
Net (gain) loss	(102)	16	(4)
Amortization of prior service (cost) credit	1	2	2
Amortization of net loss	0	0	0
Total recognized in other comprehensive (income) loss	(101)	18	(2)
Total recognized in net periodic benefit cost and other comprehensive loss	$ (86)	$ 35	$ 17