INCOME TAXES (Schedule of Deferred Tax Balances) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Income Tax Expense (Benefit) [Abstract]
Property, Deferred Tax Assets	$ 0	$ 0
Loss and Credit Carryforwards, Deferred Tax Assets	103	122
Postretirement benefit obligations, deferred tax assets	887	772
Other accruals and reserves, deferred tax assets	595	576
Inventory, deferred tax assets	10	9
Long-term Debt, Deferred Tax Assets	0	0
Investments, Deferred Tax Assets	0	0
Other - net, deferred tax assets	28	26
Subtotal, deferred tax assets	1,623	1,505
Valuation allowances, deferred tax assets	(124)	(121)
Total, deferred tax assets	1,499	1,384
Property, deferred tax liabilities	202	229
Postretirement Benefits, Deferred Tax Liabilities	403	363
Other accruals and Reserves, Deferred Tax Liabilities	4	4
Inventory, deferred tax liabilities	1	0
Long-term debt, deferred tax liabilities	1	1
Investments, Deferred Tax Liabilities	1	1
Other - net, deferred tax liabilities	46	48
Total, deferred tax liabilities	$ 658	$ 646