OTHER LIABILITIES, INCLUDING EMPLOYEE BENEFITS (Schedule of FV of Financial Assets for Pension Plans) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Domestic Plan [Member]
Fair value of plan assets measurement [Line items]
Total pension plan net assets	$ 1,946	$ 1,677	$ 1,433
Domestic Plan [Member] | Global equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	527	425
NAV	527	425
Domestic Plan [Member] | Fixed income securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets	404	239
NAV	404	239
Domestic Plan [Member] | Global fixed income securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets		67
NAV		67
Domestic Plan [Member] | Real estate property
Fair value of plan assets measurement [Line items]
Total pension plan net assets	59	58
NAV	59	58
Domestic Plan [Member] | International small-cap equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	76	55
NAV	76	55
Domestic Plan [Member] | U.S. real estate securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets	51	53
NAV	51	53
Domestic Plan [Member] | Short-term investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	51	16
NAV	51	16
Domestic Plan [Member] | U.S. small-cap equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	25
NAV	25
Domestic Plan [Member] | Corporate bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	381	256
NAV	0	0
Domestic Plan [Member] | Government bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	181	279
NAV	0	0
Domestic Plan [Member] | Global large-cap equity securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets	109	107
NAV	0	0
Domestic Plan [Member] | Private equity investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	10	11
NAV	10	11
Domestic Plan [Member] | Other investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	55	64
NAV	0	0
Domestic Plan [Member] | Total investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	1,929	1,630
NAV	1,203	924
Domestic Plan [Member] | Cash and receivables
Fair value of plan assets measurement [Line items]
Total pension plan net assets	100	86
Domestic Plan [Member] | Payables
Fair value of plan assets measurement [Line items]
Total pension plan net assets	(83)	(39)
Domestic Plan [Member] | Level 1 | Global equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 1 | Fixed income securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 1 | Global fixed income securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets		0
Domestic Plan [Member] | Level 1 | Real estate property
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 1 | International small-cap equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 1 | U.S. real estate securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 1 | Short-term investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 1 | U.S. small-cap equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0
Domestic Plan [Member] | Level 1 | Corporate bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 1 | Government bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 1 | Global large-cap equity securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets	109	107
Domestic Plan [Member] | Level 1 | Private equity investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 1 | Other investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	1	14
Domestic Plan [Member] | Level 1 | Total investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	110	121
Domestic Plan [Member] | Level 2 | Global equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 2 | Fixed income securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 2 | Global fixed income securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets		0
Domestic Plan [Member] | Level 2 | Real estate property
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 2 | International small-cap equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 2 | U.S. real estate securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 2 | Short-term investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 2 | U.S. small-cap equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0
Domestic Plan [Member] | Level 2 | Corporate bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	381	256
Domestic Plan [Member] | Level 2 | Government bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	181	279
Domestic Plan [Member] | Level 2 | Global large-cap equity securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 2 | Private equity investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 2 | Other investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	54	50
Domestic Plan [Member] | Level 2 | Total investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	616	585
Domestic Plan [Member] | Level 3 | Global equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 3 | Fixed income securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 3 | Global fixed income securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets		0
Domestic Plan [Member] | Level 3 | Real estate property
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 3 | International small-cap equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 3 | U.S. real estate securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 3 | Short-term investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 3 | U.S. small-cap equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0
Domestic Plan [Member] | Level 3 | Corporate bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 3 | Government bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 3 | Global large-cap equity securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 3 | Private equity investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 3 | Other investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Domestic Plan [Member] | Level 3 | Total investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Foreign Plan [Member]
Fair value of plan assets measurement [Line items]
Total pension plan net assets	251	254	$ 238
Foreign Plan [Member] | Total investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	212	190
Foreign Plan [Member] | Common Stock
Fair value of plan assets measurement [Line items]
Total pension plan net assets	77	80
Foreign Plan [Member] | Government bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	117	93
Foreign Plan [Member] | Mutual funds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	18	17
Foreign Plan [Member] | Cash and receivables
Fair value of plan assets measurement [Line items]
Total pension plan net assets	41	65
Foreign Plan [Member] | Payables
Fair value of plan assets measurement [Line items]
Total pension plan net assets	(2)	(1)
Foreign Plan [Member] | Level 1 | Total investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	212	190
Foreign Plan [Member] | Level 1 | Common Stock
Fair value of plan assets measurement [Line items]
Total pension plan net assets	77	80
Foreign Plan [Member] | Level 1 | Government bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	117	93
Foreign Plan [Member] | Level 1 | Mutual funds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	18	17
Foreign Plan [Member] | Level 2 | Total investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Foreign Plan [Member] | Level 2 | Common Stock
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Foreign Plan [Member] | Level 2 | Government bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Foreign Plan [Member] | Level 2 | Mutual funds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Foreign Plan [Member] | Level 3 | Total investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Foreign Plan [Member] | Level 3 | Common Stock
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Foreign Plan [Member] | Level 3 | Government bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	0
Foreign Plan [Member] | Level 3 | Mutual funds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	$ 0	$ 0