FINANCIAL INSTRUMENTS (Summary of Fair Value of Financial Instruments) (Details) - USD ($) $ in Millions		Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Cash Equivalents, Cost		$ 2,523	$ 417
Cash Equivalents,Gain		0	0
Cash Equivalents, Loss		0	0
Cash Equivalents, Fair Value		2,523	417
Restricted Cash, Cost	[1]	32	37
Restricted Cash, Gain	[1]	0	0
Restricted Cash, Loss	[1]	0	0
Restricted Cash, Fair Value	[1]	32	37
Cash and Restricted Cash Equivalents, Marketable Securities and Other Investments, Cost		2,555	454
Cash and Restricted Cash Equivalents, Marketable Securities and Other Investments, Gain		0	0
Cash and Restricted Cash Equivalents, Marketable Securities and Other Investments, Loss		0	0
Cash and Restricted Cash Equivalents, Marketable Securities and Other Investments, Fair Value		2,555	454
Long-term debt including debt due within one year, Cost		(17,611)	(15,618)
Long Term Debt including debt due within one year, Gain		3	0
Long Term Debt including debt due within one year, Loss		(2,285)	(1,633)
Long Term Debt, Including Debt Due within one year, Fair Value		(19,893)	(17,251)
Derivative Assets (Liabilities), Gain		3	6
Derivative Assets (Liabilities), Loss		(23)	(7)
Derivative Assets (Liabilities), Fair Value		(20)	(1)
Foreign Exchange Contract
Debt Securities, Available-for-sale [Line Items]
Derivative Assets (Liabilities), Gain	[2]	3	6
Derivative Assets (Liabilities), Loss	[2]	(23)	(7)
Derivative Assets (Liabilities), Fair Value	[2]	$ (20)	$ (1)

[1] Classified as "Other current assets" in the interim Condensed Consolidated Balance Sheets.

[2] Presented net of cash collateral where master netting arrangements allow.