INCOME TAXES (Components of deferred tax assets and liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Foreign tax credits	$ 1,536	$ 1,641
Accrued expenses	1,193	1,194
Net operating losses (NOLs)	2,220	2,443
Employee benefit plans	105	177
Other	252	227
Deferred tax assets	5,306	5,682
Valuation allowances	(4,087)	(4,732)
Net deferred tax assets	1,219	950
Deferred tax liabilities:
Property, plant, equipment and mine development costs	(4,492)	(4,489)
Undistributed earnings	(807)	(694)
Other	(152)	(175)
Total deferred tax liabilities	(5,451)	(5,358)
Net deferred tax liabilities	$ (4,232)	$ (4,408)