OPERATING SEGMENTS AND GEOGRAPHIC AREAS (Reconciliation of EBITDA to Income Before Income Taxes) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Reconciliation of EBITDA to Income Before Income Taxes [Abstract]
EBITDA	$ 10,545	[1]	$ 5,591	[1]	$ 7,785	[1]
Depreciation and amortization	2,681		2,698		2,883
Interest income	41		41		40
Interest expense and amortization of debt discount	1,101		1,269		1,341
Income Before Income Taxes	$ 6,804		$ 1,665		$ 3,601

[1] A reconciliation of EBITDA to “Income Before Income Taxes” is provided below.