EQUITY (Other Comprehensive Income/(Loss)) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Other Comprehensive Income (Loss), before Tax [Abstract]
Derivatives qualifying as cash flow hedges - Unrealized gains/(losses), Pre-tax	$ 18	$ (28)	$ 63	$ (81)
Derivatives qualifying as cash flow hedges - Reclassified to net earnings, Pre-tax	(13)	21	20	(11)
Derivatives qualifying as cash flow hedges, Pre-tax	5	(7)	83	(92)
Pension and postretirement benefits - Actuarial gains/(losses), Pre-tax	(12)	(5)	100	(40)
Pension and postretirement benefits - Amortization, Pre-tax	14	19	50	57
Pension and postretirement benefits - Curtailments and settlements, Pre-Tax	26	21	95	96
Pension and postretirement benefits, Pre-tax	28	35	245	113
Available-for-sale securities, Pre-tax	4	27	(36)	48
Foreign currency translation, Pre-tax	(21)	(10)	(232)	(8)
Other Comprehensive Income/(Loss), Pre-tax	16	45	60	61
Other Comprehensive Income (Loss), Tax, Parenthetical Disclosures [Abstract]
Derivatives qualifying as cash flow hedges - Unrealized gains/(losses), Tax	(2)	12	(6)	31
Derivatives qualifying as cash flow hedges - Reclassified to net earnings, Tax	2	(6)	(6)	0
Derivatives qualifying as cash flow hedges, Tax	0	6	(12)	31
Pension and postretirement benefits - Actuarial gains/(losses), Tax	3	2	(21)	17
Pension and postretirement benefits - Amortization, Tax	(3)	(11)	(9)	(22)
Pension and postretirement benefits - Curtailments and settlements, Tax	(6)	(8)	(21)	(34)
Pension and postretirement benefits, Tax	(6)	(17)	(51)	(39)
Foreign currency translation, Tax	0	17	(5)	36
Other comprehensive income/(loss), Tax	(8)	1	(63)	21
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Derivatives qualifying as cash flow hedges - Unrealized gains/(losses), After tax	16	(16)	57	(50)
Derivatives qualifying as cash flow hedges - Reclassified to net earnings, After tax	(11)	15	14	(11)
Derivatives qualifying as cash flow hedges, After tax	5	(1)	71	(61)
Pension and postretirement benefits - Actuarial gains/(losses), After tax	(9)	(3)	79	(23)
Pension and postretirement benefits - Amortization, After tax	11	8	41	35
Pension and postretirement benefits - Curtailments and settlements, After tax	20	13	74	62
Pension and postretirement benefits, After tax	22	18	194	74
Available-for-sale securities - Unrealized gains/(losses), After tax	2	22	(31)	41
Foreign currency translation, After tax	(21)	7	(237)	28
Other Comprehensive Income/(Loss)	8	46	(3)	82
Derivatives qualifying as cash flow hedges	52		52		$ (19)
Pension and postretirement benefits	(1,689)		(1,689)		(1,883)
Available-for-sale securities	(33)		(33)		32
Foreign currency translation	(656)		(656)		(419)
Accumulated other comprehensive loss	(2,326)		(2,326)		$ (2,289)
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax	(2)	(5)	5	(7)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	$ 2	$ 22	$ (31)	$ 41