INCOME TAXES (Provision for Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
U.S. Current Income Tax Expense	$ 1,245	$ 1,002	$ 566
Current Foreign Tax Expense (Benefit)	(104)	1,437	410
Total Current Income Tax Expense	1,141	2,439	976
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
U.S. Deferred Income Tax Expense/(Benefit)	229	(113)	(51)
Non-U.S. Deferred Income Tax Expense/(Benefit)	754	(811)	96
Total Deferred Income Tax Expense/(Benefit)	983	(924)	45
Provision for Income Taxes	$ 2,124	$ 1,515	$ 1,021