INCOME TAXES (Tables)

9 Months Ended

Sep. 30, 2014

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

Income tax expense differs from the amount of income tax determined by applying the United States statutory federal income tax rate of 35% to pre-tax income due to the following:

	Three Months Ended September 30,
	2014			2013
	Millions of Dollars
Federal Income Tax Expense at Statutory Rate	$	22		$	36
State Income Tax Expense, Net of Federal Deduction	3			5
Federal/State Tax Credits	(2		)	(1		)
Other	1			(1		)
Total Federal and State Income Tax Expense	$	24		$	39

	Nine Months Ended September 30,
	2014			2013
	Millions of Dollars
Federal Income Tax Expense at Statutory Rate	$	49		$	48
State Income Tax Expense, Net of Federal Deduction	6			6
Federal/State Tax Credits	(4		)	(2		)
Investment Tax Credit Basis Adjustment - Creation of Regulatory Asset	—			(11		)
Other	1			1
Total Federal and State Income Tax Expense	$	52		$	42