BASIS OF PRESENTATION, UPDATED ACCOUNTING POLICIES AND ACCOUNTING CHANGES - Accounting Changes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease in interest expense	$ (871)	$ (712)
Increase in other operating expenses	$ 3,475	2,714
Revision of Prior Period, Reclassification, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease in interest expense		340
Increase in other operating expenses		$ 340