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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Fair Value Measurements) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015
Marketable Securities [Line Items]
Available-for-sale securities, Fair value	$ 4,748				$ 6,502
Marketable securities, Fair value	4,832	$ 5,163	$ 4,998	$ 5,352	6,545	$ 6,065	$ 5,909	$ 5,592
Fair Value Level 1 [Member] \| Equity investments [Member]
Marketable Securities [Line Items]
Available-for-sale securities, Fair value	24				60
Fair Value Level 2 [Member]
Marketable Securities [Line Items]
Cash Equivalents, Fair Value	3,532				1,825
Total derivatives at fair value, assets	75				96
Total derivatives at fair value, liabilities	(30)				(18)
Fair Value Level 2 [Member] \| Certificates of Deposit [Member]
Marketable Securities [Line Items]
Available-for-sale securities, Fair value	27				804
Fair Value Level 2 [Member] \| Commercial Paper [Member]
Marketable Securities [Line Items]
Available-for-sale securities, Fair value	750
Fair Value Level 2 [Member] \| Corporate Debt Securities [Member]
Marketable Securities [Line Items]
Available-for-sale securities, Fair value	3,947				5,638
Fair Value Level 2 [Member] \| Equity Funds [Member]
Marketable Securities [Line Items]
Marketable securities, Fair value	101				92
Fair Value Level 2 [Member] \| Fixed Income Funds [Member]
Marketable Securities [Line Items]
Marketable securities, Fair value	$ 7				$ 11