OPERATING SEGMENTS AND GEOGRAPHIC AREAS (Reconciliation of Income Before Income Taxes to Operating EBITDA) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income Before Income Taxes	$ 1,814	$ 3,357	$ 2,942	$ 3,522
Interest expense and amortization of debt discount	226	208	445	409
Interest income	22	18	47	38
Depreciation and amortization	739	680	1,517	1,287
Certain items	(2)	1,763	(606)	463
Operating EBITDA	$ 2,759	$ 2,464	$ 5,463	$ 4,717