EQUITY (Accumulated balances related to each component of other comprehensive income/(loss)) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equity [Abstract]
Derivatives qualifying as cash flow hedges	$ 34	$ 85
Pension and other postretirement benefits	(2,080)	(2,181)
Available-for-sale securities	(23)	31
Foreign currency translation	(399)	(360)
Accumulated other comprehensive loss	(2,468)	(2,425)
Other Comprehensive Income (Loss), before Tax [Abstract]
Derivatives qualifying as cash flow hedges - Unrealized gains, Pre-tax	59	139	$ 58
Derivatives qualifying as cash flow hedges - Reclassified to net earnings, Pre-tax	(130)	(41)	(56)
Derivatives qualifying as cash flow hedges, Pre-tax	(71)	98	2
Pension and postretirement benefits - Actuarial gains/(losses), Pre-tax	(88)	(1,414)	1,475
Pension and postretirement benefits - Amortization, Pre-tax	85	104	129
Pension and postretirement benefits - Settlements and curtailments, Pre-tax	160	867	165
Pension and other postretirement benefits, Pre-tax	157	(443)	1,769
Available-for-sale securities - Unrealized gains/(losses), Pre-tax	(71)	10	(35)
Available-for-sale securities - Realized (gains)/losses, Pre-tax	3	(1)	(8)
Available-for-sale securities, Pre-tax	(68)	9	(43)
Foreign currency translation, Pre-tax	(17)	(8)	(75)
Other Comprehensive Income/(Loss), before Tax	1	(344)	1,653
Other Comprehensive Income (Loss), Tax, Parenthetical Disclosures [Abstract]
Derivatives qualifying as cash flow hedges - Unrealized gains, Tax	(22)	(45)	(17)
Derivatives qualifying as cash flow hedges - Reclassified to net earnings, Tax	42	16	22
Derivatives qualifying as cash flow hedges, Tax	20	(29)	5
Pension and other postretirement benefits - Actuarial gains/(losses), Tax	27	464	(504)
Pension and other postretirement benefits - Amortization, Tax	(28)	(37)	(43)
Pension and other postretirement benefits - Settlements and curtailments, Tax	(55)	(308)	(56)
Pension and other postretirement benefits, Tax	(56)	119	(603)
Available-for-sale securities - Unrealized gains/(losses), Tax	14	(6)	3
Available-for-sale securities - Realized gains, Tax			3
Available-for-sale securities, Tax	14	(6)	6
Foreign currency translation Adjustment, Tax	(22)	(24)
Other comprehensive income/(loss), Tax	(44)	60	(592)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Derivatives qualifying as cash flow hedges - Unrealized holding gains, After tax	37	94	41
Derivatives qualifying as cash flow hedges - Reclassified to net earnings After tax	(88)	(25)	(34)
Derivatives qualifying as cash flow hedges, After tax	(51)	69	7
Pension and other postretirement benefits - Actuarial gains/(losses), After tax	(61)	(950)	971
Pension and other postretirement benefits - Amortization, After tax	57	67	86
Pension and other postretirement benefits - Settlements and curtailments	105	559	109
Pension and other postretirement benefits, After tax	101	(324)	1,166
Available for sale securities - Unrealized gains/(losses), After tax	(57)	4	(32)
Available for sale securities - Realized (gains)/losses, After tax	3	(1)	(5)
Available-for-sale securities, After tax	(54)	3	(37)
Foreign currency translation, After tax	(39)	(32)	(75)
Total Other Comprehensive Income/(Loss)	$ (43)	$ (284)	$ 1,061