PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Changes in Fair Value of Plan Assets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			3 Months Ended	6 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2013 Pension	Jun. 30, 2013 Pension	Dec. 31, 2013 Pension	Dec. 31, 2012 Pension	Dec. 31, 2013 Other Postretirement Benefits	Dec. 31, 2012 Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, beginning					$ 5,022	$ 5,022	$ 4,714	$ 0	$ 0
Adjustment for final fair value of plan assets				55	55	55	16	0	0
Actual return on plan assets	808	490	49			808	490	0	0
Foreign currency exchange rate changes						(57)	15	0	0
Employer contributions and benefit payments						103	110	34	35
Plan participants’ contributions						0	0	16	18
Benefits paid (includes lump sum settlements)						(317)	(323)	(50)	(53)
Fair value of plan assets, ending						$ 5,614	$ 5,022	$ 0	$ 0