EMPLOYEE BENEFITS (Details - Assets Measured at Fair Value) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Fair value measured at NAV per share | Other Investment Types
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 943	$ 1,232
Pensions | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4,746	4,931	$ 4,465
Pensions | U.S. | Levels 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3,803	3,699
Pensions | U.S. | Levels 1, 2 and 3 | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	118	247
Pensions | U.S. | Levels 1, 2 and 3 | Equity securities - U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	301	459
Pensions | U.S. | Levels 1, 2 and 3 | Equity securities - International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9	183
Pensions | U.S. | Levels 1, 2 and 3 | Fixed maturity securities: U.S. investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,901	2,227
Pensions | U.S. | Levels 1, 2 and 3 | Fixed maturity securities - International investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	302	237
Pensions | U.S. | Levels 1, 2 and 3 | Fixed maturity securities - U.S. and international high yield
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	90	282
Pensions | U.S. | Levels 1, 2 and 3 | Mortgage-backed, asset-backed and collateralized
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	56	49
Pensions | U.S. | Levels 1, 2 and 3 | Other fixed maturity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3
Pensions | U.S. | Levels 1, 2 and 3 | Other investment types - Futures
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4	(4)
Pensions | U.S. | Levels 1, 2 and 3 | Other investment types - Direct private equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8	6
Pensions | U.S. | Levels 1, 2 and 3 | Other investment types - Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11	13
Pensions | U.S. | Levels 1, 2 and 3 | Mutual Fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	459	892
Pensions | U.S. | Level 1 | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	118	247
Pensions | U.S. | Level 1 | Equity securities - U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	301	459
Pensions | U.S. | Level 1 | Equity securities - International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9	183
Pensions | U.S. | Level 1 | Fixed maturity securities: U.S. investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	27	0
Pensions | U.S. | Level 1 | Fixed maturity securities - International investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 1 | Fixed maturity securities - U.S. and international high yield
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 1 | Mortgage-backed, asset-backed and collateralized
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 1 | Other fixed maturity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Pensions | U.S. | Level 1 | Other investment types - Futures
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4	3
Pensions | U.S. | Level 1 | Other investment types - Direct private equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 1 | Other investment types - Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 1 | Mutual Fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3,319	2,791
Pensions | U.S. | Level 2 | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 2 | Equity securities - U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 2 | Equity securities - International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 2 | Fixed maturity securities: U.S. investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,858	2,217
Pensions | U.S. | Level 2 | Fixed maturity securities - International investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	302	237
Pensions | U.S. | Level 2 | Fixed maturity securities - U.S. and international high yield
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	90	282
Pensions | U.S. | Level 2 | Mortgage-backed, asset-backed and collateralized
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	55	49
Pensions | U.S. | Level 2 | Other fixed maturity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3
Pensions | U.S. | Level 2 | Other investment types - Futures
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	(7)
Pensions | U.S. | Level 2 | Other investment types - Direct private equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 2 | Other investment types - Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11	13
Pensions | U.S. | Level 2 | Mutual Fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	25	16	20
Pensions | U.S. | Level 3 | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 3 | Equity securities - U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 3 | Equity securities - International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 3 | Fixed maturity securities: U.S. investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	16	10	9
Pensions | U.S. | Level 3 | Fixed maturity securities - International investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 3 | Fixed maturity securities - U.S. and international high yield
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 3 | Mortgage-backed, asset-backed and collateralized
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1	0
Pensions | U.S. | Level 3 | Other fixed maturity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Pensions | U.S. | Level 3 | Other investment types - Futures
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 3 | Other investment types - Direct private equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8	6	11
Pensions | U.S. | Level 3 | Other investment types - Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | U.S. | Level 3 | Mutual Fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	996	977	899
Pensions | Non U.S. Plans | Levels 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	996	977
Pensions | Non U.S. Plans | Levels 1, 2 and 3 | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	84	83
Pensions | Non U.S. Plans | Levels 1, 2 and 3 | Equity securities - U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Levels 1, 2 and 3 | Equity securities - International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	239	213
Pensions | Non U.S. Plans | Levels 1, 2 and 3 | Fixed maturity securities: U.S. investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Levels 1, 2 and 3 | Fixed maturity securities - International investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	180	174
Pensions | Non U.S. Plans | Levels 1, 2 and 3 | Fixed maturity securities - U.S. and international high yield
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	239	269
Pensions | Non U.S. Plans | Levels 1, 2 and 3 | Mortgage-backed, asset-backed and collateralized
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Levels 1, 2 and 3 | Other fixed maturity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	19
Pensions | Non U.S. Plans | Levels 1, 2 and 3 | Other investment types - Futures
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Levels 1, 2 and 3 | Other investment types - Direct private equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Levels 1, 2 and 3 | Other investment types - Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	171	179
Pensions | Non U.S. Plans | Levels 1, 2 and 3 | Mutual Fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	64	59
Pensions | Non U.S. Plans | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	269	238
Pensions | Non U.S. Plans | Level 1 | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	84	83
Pensions | Non U.S. Plans | Level 1 | Equity securities - U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 1 | Equity securities - International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	185	155
Pensions | Non U.S. Plans | Level 1 | Fixed maturity securities: U.S. investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 1 | Fixed maturity securities - International investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 1 | Fixed maturity securities - U.S. and international high yield
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 1 | Mortgage-backed, asset-backed and collateralized
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 1 | Other fixed maturity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Pensions | Non U.S. Plans | Level 1 | Other investment types - Futures
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 1 | Other investment types - Direct private equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 1 | Other investment types - Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 1 | Mutual Fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	556	560
Pensions | Non U.S. Plans | Level 2 | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 2 | Equity securities - U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 2 | Equity securities - International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	54	58
Pensions | Non U.S. Plans | Level 2 | Fixed maturity securities: U.S. investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 2 | Fixed maturity securities - International investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	180	174
Pensions | Non U.S. Plans | Level 2 | Fixed maturity securities - U.S. and international high yield
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	239	269
Pensions | Non U.S. Plans | Level 2 | Mortgage-backed, asset-backed and collateralized
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 2 | Other fixed maturity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	19
Pensions | Non U.S. Plans | Level 2 | Other investment types - Futures
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 2 | Other investment types - Direct private equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 2 | Other investment types - Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 2 | Mutual Fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	64	59
Pensions | Non U.S. Plans | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	171	179	160
Pensions | Non U.S. Plans | Level 3 | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 3 | Equity securities - U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 3 | Equity securities - International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 3 | Fixed maturity securities: U.S. investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 3 | Fixed maturity securities - International investment grade
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 3 | Fixed maturity securities - U.S. and international high yield
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 3 | Mortgage-backed, asset-backed and collateralized
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 3 | Other fixed maturity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Pensions | Non U.S. Plans | Level 3 | Other investment types - Futures
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 3 | Other investment types - Direct private equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pensions | Non U.S. Plans | Level 3 | Other investment types - Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	171	179	$ 160
Pensions | Non U.S. Plans | Level 3 | Mutual Fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0