INCOME TAXES (Provision for (benefit from) income taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal	$ (164)	$ (89)	$ 269
State	(17)	(2)	34
Foreign	352	160	1,066
Total current	171	69	1,369
Deferred income taxes:
Federal	(137)	(3,403)	(616)
State	(41)	(154)	(214)
Foreign	451	163	19
Total deferred	273	(3,394)	(811)
Adjustments	(13)	1,374	0
Operating loss carryforwards	(60)	0	(333)
(Provision for) benefit from income taxes	371	(1,951)	$ 225
Net provision associated with an increase in the beginning of the year valuation allowance	$ 1,900	1,200
PT-FI
Deferred income taxes:
Adjustments		$ 200