INCOME TAXES - COMPONENTS OF INCOME TAX EXPENSE (BENEFIT) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current
Federal	$ 33	$ (23)	$ (81)
State and Local	46	52	11
Foreign	1,641	1,077	806
Total current tax expense	1,720	1,106	736
Deferred
Federal	(130)	422	(856)
State and Local	17	12	23
Foreign	(914)	(63)	114
Total deferred tax expense (benefit)	(1,027)	371	(719)
Total income tax expense	$ 693	$ 1,477	$ 17