OPERATING SEGMENTS AND GEOGRAPHIC AREAS (Reconciliation of EBITDA to Income Before Income Taxes) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reconciliation of Income Before Income Taxes to EBITDA[Abstract]
Income Before Income Taxes		$ 4,413	$ 9,930	$ 5,265
Interest expense and amortization of debt discount		858	946	983
Interest income		107	71	51
Depreciation and amortization		2,862	2,521	2,747
EBITDA	[1]	$ 8,026	$ 13,326	$ 8,944

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