INCOME TAXES INCOME TAXES (Operating Loss Carryforwards) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating Loss Carryforwards [Line Items]
Foreign tax credits	$ 2,129	$ 2,094
Foreign	2,882	1,707	$ 461
U.S.	20	$ (5,179)	$ (14,589)
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	10,600
Federal Tax Authority
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	6,400
Deferred Tax Assets, Capital Loss Carryforwards	160
U.S.	5,300
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	566
Foreign tax credits	1,100
Foreign	$ 5,300