SUBSEQUENT EVENT (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended
	Apr. 30, 2015	Mar. 31, 2015
5.45% Senior Notes Due 2015 [Member]
Subsequent Event [Line Items]
Debt instrument, interest rate		5.45%
3.20% Senior Notes Due 2016 [Member]
Subsequent Event [Line Items]
Debt instrument, interest rate		3.20%
6.40% Senior Notes Due 2017 [Member]
Subsequent Event [Line Items]
Debt instrument, interest rate		6.40%
Subsequent Event [Member]
Subsequent Event [Line Items]
Pre tax losses on extinguishment of debt	$ 64
Subsequent Event [Member] | 5.45% Senior Notes Due 2015 [Member]
Subsequent Event [Line Items]
Extinguishment of debt, amount	500
Debt instrument, interest rate	5.45%
Subsequent Event [Member] | 3.20% Senior Notes Due 2016 [Member]
Subsequent Event [Line Items]
Extinguishment of debt, amount	150
Debt instrument, interest rate	3.20%
Extinguishment of debt, percent	50.00%
Subsequent Event [Member] | 6.40% Senior Notes Due 2017 [Member]
Subsequent Event [Line Items]
Extinguishment of debt, amount	$ 375
Debt instrument, interest rate	6.40%