DEBT (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended		9 Months Ended
	Apr. 30, 2015	Mar. 31, 2015	Sep. 30, 2015
Debt Instrument [Line Items]
Unamortized discount			$ 17
Other Income (Expense), Net [Member]
Debt Instrument [Line Items]
Pre tax losses on extinguishment of debt			$ 144
2015 Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$ 1,200
Debt issuance cost		11
2.50% Senior Notes due March 2020 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$ 300
Debt instrument, interest rate		2.50%	2.50%
Unamortized discount		$ 1
3.50% Senior Notes due March 2025 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$ 600
Debt instrument, interest rate		3.50%	3.50%
4.70% Senior Notes due March 2045 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$ 300
Debt instrument, interest rate		4.70%	4.70%
6.95% Senior Notes due July 2037 and 5.75% Senior Notes due January 2040 [Member]
Debt Instrument [Line Items]
Extinguishment of debt, amount		$ 250
6.95% Senior Notes Due 2037 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			6.95%
Extinguishment of debt, amount		176
5.75% Senior Notes Due 2040 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			5.75%
Extinguishment of debt, amount		$ 74
5.45% Senior Notes Due 2015 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	5.45%		5.45%
3.20% Senior Notes Due 2016 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	3.20%		3.20%
Extinguishment of debt, amount	$ 150
6.40% Senior Notes Due 2017 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	6.40%		6.40%