OTHER LIABILITIES, INCLUDING EMPLOYEE BENEFITS (Schedule of FV of Financial Assets for Pension Plans) (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Domestic Plan [Member]
Fair value of plan assets measurement [Line items]
Total pension plan net assets	$ 1,433	$ 1,588	$ 1,329
Domestic Plan [Member] | Global equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	291	404
NAV	291	404
Domestic Plan [Member] | Fixed income securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets	144	154
NAV	144	154
Domestic Plan [Member] | Global fixed income securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets	108	115
NAV	108	115
Domestic Plan [Member] | Real estate property
Fair value of plan assets measurement [Line items]
Total pension plan net assets	55	50
NAV	55	50
Domestic Plan [Member] | Emerging markets equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	71	87
NAV	71	87
Domestic Plan [Member] | U.S. small-cap equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	54	67
NAV	54	67
Domestic Plan [Member] | International small-cap equity
Fair value of plan assets measurement [Line items]
Total pension plan net assets	47	72
NAV	47	72
Domestic Plan [Member] | U.S. real estate securities
Fair value of plan assets measurement [Line items]
Total pension plan net assets	41	45
NAV	41	45
Domestic Plan [Member] | Short-term investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	15	12
NAV	15	12
Domestic Plan [Member] | Government bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	224	208
NAV	0	0
Domestic Plan [Member] | Corporate bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	211	168
NAV	0	0
Domestic Plan [Member] | Global large-cap equity securities [Domain]
Fair value of plan assets measurement [Line items]
Total pension plan net assets	94	119
NAV	0	0
Domestic Plan [Member] | Private equity investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	15	20
NAV	15	20
Domestic Plan [Member] | Other investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	61	62
NAV	0	0
Domestic Plan [Member] | Total investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	1,431	1,583
NAV	841	1,026
Domestic Plan [Member] | Cash and receivables
Fair value of plan assets measurement [Line items]
Total pension plan net assets	32	21
Domestic Plan [Member] | Payables
Fair value of plan assets measurement [Line items]
Total pension plan net assets	(30)	(16)
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	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 | Emerging markets equity
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	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 | Government bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	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 | Global large-cap equity securities [Domain]
Fair value of plan assets measurement [Line items]
Total pension plan net assets	94	119
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	16	19
Domestic Plan [Member] | Level 1 | Total investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	110	138
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	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 | Emerging markets equity
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	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 | Government bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	224	208
Domestic Plan [Member] | Level 2 | Corporate bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	211	168
Domestic Plan [Member] | Level 2 | Global large-cap equity securities [Domain]
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	45	43
Domestic Plan [Member] | Level 2 | Total investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	480	419
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	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 | Emerging markets equity
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	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 | Government bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	0	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 | Global large-cap equity securities [Domain]
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	238	269	$ 284
Foreign Plan [Member] | Total investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	164	175
Foreign Plan [Member] | Common Stock
Fair value of plan assets measurement [Line items]
Total pension plan net assets	72	78
Foreign Plan [Member] | Government bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	72	81
Foreign Plan [Member] | Mutual funds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	20	16
Foreign Plan [Member] | Cash and receivables
Fair value of plan assets measurement [Line items]
Total pension plan net assets	75	94
Foreign Plan [Member] | Payables
Fair value of plan assets measurement [Line items]
Total pension plan net assets	(1)
Foreign Plan [Member] | Level 1 | Total investments
Fair value of plan assets measurement [Line items]
Total pension plan net assets	164	175
Foreign Plan [Member] | Level 1 | Common Stock
Fair value of plan assets measurement [Line items]
Total pension plan net assets	72	78
Foreign Plan [Member] | Level 1 | Government bonds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	72	81
Foreign Plan [Member] | Level 1 | Mutual funds
Fair value of plan assets measurement [Line items]
Total pension plan net assets	20	16
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