NOTES PAYABLE, LONG-TERM DEBT AND AVAILABLE CREDIT FACILITIES (Extinguishment of Debt) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended		3 Months Ended		1 Months Ended		2 Months Ended	6 Months Ended		2 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Mar. 31, 2012 Corporate [Member]	Mar. 31, 2011 Corporate [Member]	Mar. 22, 2011 Tender Offer of Long Term Debt [Member]	Mar. 22, 2011 Redemption of Notes [Member]	Mar. 08, 2012 Redemption of Notes [Member]	Jun. 30, 2011 InterNotes [Member]	Jun. 30, 2011 InterNotes [Member] Corporate [Member]	Mar. 08, 2012 Four point eight five percent notes due August 15, 2012 [Member] Redemption of Notes [Member]	Mar. 31, 2012 Four point eight five percent notes due August 15, 2012 [Member] Redemption of Notes [Member]
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount					$ 1,500	$ 1,500	$ 1,250	$ 1,208
Debt Instrument, Interest Rate, Stated Percentage											4.85%
Redemption price of the principle debt amount										101.80%
Loss on early extinguishment of debt	$ 24	$ 482	$ 24	$ 472					$ 10