NOTES PAYABLE, LONG-TERM DEBT AND AVAILABLE CREDIT FACILITIES (Narrative) (Details) In Millions, unless otherwise specified	9 Months Ended					1 Months Ended	3 Months Ended	9 Months Ended		1 Months Ended	9 Months Ended		2 Months Ended		9 Months Ended	1 Months Ended
	Sep. 30, 2013 USD ($)	Sep. 30, 2012 USD ($)	Sep. 30, 2013 $200 Million Revolving Credit Facility Due 10/2016 [Domain] USD ($)	Sep. 30, 2013 $100 Million Revolving Credit Facility Due 10/2016 [Domain] USD ($)	Sep. 30, 2013 Revolving Credit Facility Agreement [Member] USD ($)	Sep. 30, 2012 Long-term Debt [Member] EUR (€)	Jun. 30, 2012 Long-term Debt [Member] USD ($)	Sep. 30, 2013 Long-term Debt [Member] USD ($)	Sep. 30, 2012 Long-term Debt [Member] USD ($)	Jan. 31, 2012 Pollution control industrial revenue bonds [Member] USD ($)	Sep. 30, 2012 Long Term Debt entered into by Variable Interest Entities [Member] USD ($)	Sep. 30, 2013 Inter Notes [Member] USD ($)	Mar. 08, 2012 Redemption of Notes [Member] Four point eight five percent notes due August 15, 2012 [Member] USD ($)	Sep. 30, 2012 Redemption of Notes [Member] Four point eight five percent notes due August 15, 2012 [Member]	Sep. 30, 2013 Redemption of Notes [Member] Five point six percents due March 15, 2013 [Member] USD ($)	Aug. 15, 2013 Redemption of Notes [Member] Six point eight five percent notes due August 15 2013 [Member] USD ($)	Sep. 30, 2013 Redemption of Notes [Member] Six point eight five percent notes due August 15 2013 [Member]
Notes Payable Long Term Debt and Available Credit Facilities [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 6,070		$ 200	$ 100
Debt Instrument, Interest Rate, Stated Percentage														4.85%	5.60%		6.85%
Extinguishment of Debt, Amount													1,250			138
Proceeds from issuance of long-term debt	749	532						286	210		307
Repayments of Notes Payable						253	317			37		82			250
Debt instrument covenant, ratio of indebtedness to net capital, maximum	0.65
Amount of debt, if exceeded, causes company to comply with capitalization ratios					500
Amount at which a failure to pay results in default	100
Permitted amount of acceleration of principal which causes default	400
Amount of judgment which causes default	$ 400