INCOME TAXES (Provision for Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
U.S. Current Income Tax Expense	$ 2,782	$ 1,144	$ 337
Non-U.S. Current Income Tax Expense	364	468	456
Total Current Income Tax Expense	3,146	1,612	793
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
U.S. Deferred Income Tax Expense/(Benefit)	1,063	(101)	(394)
Non-U.S. Deferred Income Tax Expense/(Benefit)	(53)	(103)	47
Total Deferred Income Tax Expense/(Benefit)	1,010	(204)	(347)
Provision for Income Taxes	$ 4,156	$ 1,408	$ 446