DEBT AND FINANCIING ARRANGEMENTS (DETAILS 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Letter of Credit Facility [Member] | Citibank [Member]
Line of Credit Facility [Line Items]
Maximum capacity	$ 750
Termination notice requirement for lender after agreed date	30 days
Letters of credit outstanding	501
Letter of Credit Facility [Member] | ING [Member]
Line of Credit Facility [Line Items]
Maximum capacity	170
Letters of credit outstanding	170
Credit Facility [Member] | Syndication of Lenders [Member]
Line of Credit Facility [Line Items]
Maximum capacity	250
Potential increase in maximum capacity	150
Letters of credit outstanding	0
Credit facility borrowings	$ 0