Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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DEBT (Senior Notes Offering) (Details) - USD ($) $ in Millions	1 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Unamortized discount			$ 16
Cash and cash equivalents			$ 133	$ 192	$ 187	$ 296
2015 Senior Notes [Member]
Debt Instrument [Line Items]
Face amount of debt	$ 1,200
Debt issuance cost	11
2.50% Senior Notes due March 2020 [Member]
Debt Instrument [Line Items]
Face amount of debt	$ 300
Debt instrument, interest rate	2.50%		2.50%
Unamortized discount	$ 1
Debt instrument, maturity date			Mar. 30, 2020
3.50% Senior Notes due March 2025 [Member]
Debt Instrument [Line Items]
Face amount of debt	$ 600
Debt instrument, interest rate	3.50%		3.50%
Debt instrument, maturity date			Mar. 30, 2025
4.70% Senior Notes due March 2045 [Member]
Debt Instrument [Line Items]
Face amount of debt	$ 300
Debt instrument, interest rate	4.70%		4.70%
Debt instrument, maturity date			Mar. 30, 2045
2.70% Senior Notes due April 2019 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			2.70%
Debt instrument, maturity date			Apr. 01, 2019
4.25% Senior Notes due April 2024 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			4.25%
Debt instrument, maturity date			Apr. 01, 2024
Senior Notes [Member]
Debt Instrument [Line Items]
Face amount of debt		$ 600
Debt issuance cost		5
Unamortized discount		1
Senior Notes [Member] \| 2.70% Senior Notes due April 2019 [Member]
Debt Instrument [Line Items]
Face amount of debt		$ 300
Debt instrument, interest rate		2.70%
Senior Notes [Member] \| 4.25% Senior Notes due April 2024 [Member]
Debt Instrument [Line Items]
Face amount of debt		$ 300
Debt instrument, interest rate		4.25%