Income Taxes

6 Months Ended

Jun. 30, 2013

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

Deferred Tax Assets. Our net deferred tax asset was included on the Consolidated Balance Sheets in other assets and liabilities as follows:

	December 31, 2012			June 30, 2013
Current deferred tax asset	$	44		$	33
Current deferred tax liability	(173		)	(207		)
Noncurrent deferred tax asset	1,251			1,157
Noncurrent deferred tax liability	(144		)	(136		)
Net deferred tax asset	$	978		$	847

Tax Uncertainties. For all periods open to examination by tax authorities, we periodically assess our liabilities and contingencies based on the latest available information. Where we believe there is more than a 50 percent chance that our tax position will not be sustained, we record our best estimate of the resulting tax liability, including interest, in the Consolidated Financial Statements. We include any interest or penalties incurred in connection with income taxes as part of income tax expense.

We participate in the Internal Revenue Service (IRS) Compliance Assurance Process, a real-time audit of our consolidated corporate federal income tax return. The IRS has examined our consolidated federal income tax returns through 2011.

Based on all known facts and circumstances and current tax law, we believe the total amount of unrecognized tax benefits on June 30, 2013, is not material to our results of operations, financial condition or cash flows, and if recognized, would not have a material impact on our effective tax rate. We further believe that there are no tax positions for which it is reasonably possible that the unrecognized tax benefits will significantly vary over the next 12 months, producing, individually or in the aggregate, a material effect on our results of operations, financial condition or cash flows.